November 07, 2023 | by mwilliams21. •. 3 cm. A study was done in 2010, and published by BMC Pregnancy & Childbirth, that proves the existence and accuracy of the purple line for many women. Such research may require independent eye-tracker use. U-Net is a simplified approach for automatic segmentation. cogitosum · 04/07/2013 21:13. As your baby’s birthday approaches and the big event of childbirth draws near, you can also tell if you are dilating by the purple line. 2013; 1(1): 7-12. When the line reaches the top of the natal cleft, 2nd stage is probably a matter of minutes away. Plastic drop cloths. ” 🤷🏻♀️ indeed, I have a purple line all of the way up my crack buuut I’ve never been checked for dilation. mamaKkx. In this study, the line itself was present at some point in labor for 76% of women. I’ve read what I. Shear - All the points along one side. It's visible in most moms unless they carry a lot of abdominal weight. But how in the world does that work? Well, as the baby descends into the deep pelvis, the purple line rises up from the outskirts of the anus. vn synthesize and compile, see more in the section How. Comparing diagnostic accuracy of purple line with transverse diagonal of michaelis sacral to predict labor progress in nulliparous and multiparous women. We were at 10 cm and it was go time!!! I'm actually really thankful that that the purple line showed up because I dilated from 6 to 10 cm really quickly -- well before we all expected. The further along you are in dilation, the higher the line extends. Rotation - The image is the preimage rotated around a fixed point; "a turn. My suggestion is to check out your bum in early pregnancy so that you know the difference. Basically, the theory is that starting at 3-4cm of dilation, a dark purple/red lines appears in your buttcrack. not. asking my Ob to check my cervix tomorrow at my appointment and will test this theory outI know there's been a lot of discussion about this purple dilation line on here, so I'm curious if anybody has had the purple line, but did not go into labor any time remotely soon? They say it really is indicative of being dilated, but with all 4 of my prior pregnancies, I was not aware of "the line". This is a purple/dark line that shows up and extends well, to put it delicately, along your natal cleft. How To Check Dilation. 3% specificity, 88. . I googled it and it said it’s actually a old wives tale to tell if your dilated, you measure the line. Cryptopurple line between buttocks indicating dilation. If your waters have broken, it is best not to self check dilation. Angle your fingers back towards your anus to most effectively feel your cervix. j. Some drs feel this way is more accurate than actual cervical checks. However, my massage therapist is a doula and said that a little hack to know if you’re really in labor is to, while in a contraction, feel your pirformous muscle (Google it, it’s in your butt) and if it’s also. Diedre nelson: rifle twist rate chart stanislav ianevski. May 2015. 5% positive. Getting PregnantComing up from the space between her bum cheeks, you can clearly see a thick red / purple line extending upwards toward her lower back. 1M views Discover videos related to purple line dilation on TikTok. It will provide a direct connection to the Metrorail Red, Green and Orange Lines; at Bethesda, Silver. Select BCA assays now include Dilution-Free BSA Protein Standards which are a set of 7 prediluted BSA standards,. 2. The purplish line that appears in your butt crack that can indicate if you’re dilated at all and give an estimate of how dilated you are? I checked today (33+6) and I definitely have a purple line. Has anyone ever used this method of checking for dilation? Fun TMI picture for referance as to what is suppose to happen. mil. 6% sensitivity, 52. To be honest- even if the line correlates to labor and dilation, if you’re not having consistent contractions then it doesn’t really matter. According to a recent Facebook post by baby first aid and education service Tiny Hearts Education, this purple (or silver, red, pink or brown depending on skin colour and tone) line appears during labour on the butt of around 75 per cent of mums. Sign Out. Image: Supplied/Tiny Hearts Education. 2% and a kappa coefficient of 0. The line gets longer as your labour progresses and dilates. It is a purple or brownish line (mostly depending on skin color) that extends from a woman’s anus upwards to the top of the cleft between her buttocks! To be precise, it does not appear in all women! According to research, it appears in about 76% of all women when they are dilating (1). The only reason why I would want one is to see where in the pelvis the baby is, so I could adjust my position. Moreover, vaginal exams may introduce bacteria into the cervix and can be uncomfortable for some women during. For some women though, it doesn't show up until. My purple line is 7cm long and I was just wondering how true this theory is?I’ve been having Braxton hicks and tightenings. I'm going into the doc tomorrow hoping to be induced in. 0% when cervical dilatation was 10 cm. A. Top graph: traces show mean firing rate of Pre -dilation FCx neurons in relation to individual pupil dilation events within a single behavioral session ( n = 500–1000 dilation events. Jan 29, 2023 at 5:09 AM. As she dilates, this measurement decreases at about 2 cms per fingerbreadth. 21. Therefore, this study aimed to determine the. mamaKkx. 32-0. But at 35 weeks you’re getting close without needing the line to tell you. Fertility ; Ovulation Calculator ; Ovulation Symptoms ; Preparing for PregnancyYou can Google the purple dilation line 😂👌 apparently, when dilation starts, a deep reddish purple line will begin from your bum, growing upwards to the top of your crack. ) The study cited only 48-56% accuracy of vaginal examinations to determine cervix diameter and fetal station. Main results There were six eligible studies included in the systematic review that reported on 982 women in total with the purple line appearing in 760 (77. At my appointment last week I was 3cm dilated and 80% effaced. 32–0. But major construction was halted in September of 2020. How to Check Your Cervix for Dilation (4 Easy Steps) How to Check Your Cervix for Dilation (4 Easy Steps). This line tends to approximately reflect cervix dilation, with about 1cm of line equalling about 1cm of dilation of the cervix. Cervix Dilation Sign #4: Feel your fundus. 25 questions. How accurate is the purple line dilation? Appearance of the purple line in the prediction of labor progress has 90. Alternative Methods of Checking Dilation {The Purple Line and More}by Birth Without Fear . That Was Intense! – 40-Week Pregnancy Vlog // 8. 1 cm and thus very high compared to the average value. Stage of Labor. It is not the purpose of this article to provide either a detailed comparison of DEM generation by contour line dilation with the many other methods that exist or an in-depth evaluation of various methods. Have any of you heard of a purple/red line that rises from your anus up to the top of…DOI: 10. If mine is correct, it is about 6. Basically as the baby descends, a red/purplish (or perhaps brown depending on skin color) line creeps up from the anus to the top of the natal cleft in between the bottom cheeks. I will post how dilated I am after tomorrow's appointment, just to see if this theory holds up. mlmc-22. The end-diastole and systole are indicated by the white dotted and pink lines, respectively. Getting Pregnant . Can you have the purple line and not be in. 2014. 4% with a cervical dilatation of 3 cm to 84. You could be dilated to a 3 or 4 or more for weeks and that doesn’t mean labor is happening. It allows us to understand how the shape transforms based on the dilation factor and direction. . The dilation factor is 5, and the filter is 50. 6% sensitivity, 52. Has anyone tried the purple line dilation? I’m curious as to how accurate it was if you did and then had a cervical exam shortly after. Top graph: traces show mean firing rate of Pre -dilation FCx neurons in relation to individual pupil dilation events within a single behavioral session (n=500-1000 dilation events per session). 2% sensitivity, 45. Results: The purple line was seen at some point in labour for 109 women (76%). 7% and this accuracy is reduced with the increase of cervical dilatation (5, 6). . A 10 × improvement over the “standard” 100 ps resolution can be realized with the dilation x-ray imager (DIXI). Wondering if this baby is coming early!How accurate is the Purple Line dilation? Some studies have shown that the overall accuracy for cervical dilatation is between 48% to 56% with ± 1 cm error, to 89. 2013; 1: 7-12. As the birth of your baby nears, your cervix changes in preparation for labor. 5. It is the first time that two-dimensional (2D) images are. Fertility ; Ovulation Calculator ; Ovulation Symptomsk. How accurate is the purple line dilation? Some studies have shown that the overall accuracy for cervical dilatation is between 48% to 56% with ± 1 cm error, to 89. Purple line had high incidence but was not suitable for diagnosing cervical dilatation and fetal head station owing to low accuracy. All 8+ how to check for purple line dilation Advanced Guide. 2013; 1(1): 7-12. 3% specificity, 88. Outline hide. after dilation, e. By measuring the length of this purple line and comparing it with the total length of a woman’s natal cleft (or the entire length of the crease of her butt), a midwife can determine approximately how dilated a. 1 km) light rail line intended to link the Maryland suburbs of Bethesda, Silver Spring, College Park, and New Carrollton, all in the Washington metropolitan area. Basically, the theory is that starting at 3-4cm…Purple line indicating dilation…. Dilations make a shape bigger or smaller. 4 cm when the cervical dilatation was 9-10 cm, whereas it was more than 7. . Computational values as large as almost 90 × 10 − 6 K − 1 were reported for Mg 3 Sb 2 at 600 K [6]. 4 cm when the cervical dilatation was 9-10 cm, whereas it was more than 7. Summary: The purple line dilation is a concept used in mathematics to visualize the stretching or shrinking of a shape along a specific line. There. Stations’ Artistic Creations. 2: Iran Red Crescent Med J. 7 replies. The purple line is non invasive methods to assess labour progress. : Bethesda, Silver Spring, College Park, and New Carrollton. Unique Dilations stickers featuring millions of original designs created and sold by independent artists. The experimental results show that our MLTCN can achieve an overall accuracy of 84. 2010). You can also try older drivers in Device Manager > Display device > Driver tab > Update Driver > Browse > Let Me Pick. biomedcentral. How accurate is the purple line dilation? Appearance of the purple line in the prediction of labor progress in the first stage of labor has 90. I’m currently 36 weeks and have a purple line. Depending on the distance the two fingers can stretch apart, it’s possible to indicate further dilation. Kordi M et al. The monitor is connected to the GPU with a DisplayPort cable. OriginalArticle EgyptianJournalofHealthCare,2021EJHvol. 0% negative predictive value and in the second stage of labor it has 87. 9 (red line). Jan 8, 2022 at 7:18 PM. f (x) =a (bx-h)n+k. Feb 26, 2022 at 4:13 PM. JMRH. If the tips of two fingers fit, this means the cervix is 2 cm dilated. A. Still not in labor lol I asked my dr about this and she said she never heard about it ♀️. 0001). 2-mile (26. I have a long purple line ranging from the hole up to the bumcrack. It occurs in about 75% of woman with a 50% accuracy. 64; 95%CI: 0. Affiliate Disclosure; Contact us; Find what come to your mind; How do you dilate a formula?The . 5 weeks ago. b is the horizontal stretch. My midwife noticed the purple line was "complete" and decided to check my dilation. May 16, 2016. In Bryne and Edmonds the purple line appeared in 89 % of the women . Skip to content. Careful. 1995; 173: 942-945. The ‘purple line’ is a line of temporary skin discoloration that can be seen in the anal cleft of some women as they progress in labour. Purple Line Dilation - What is the Purple Line in Labor?The quality of a DEM generated by contour dilation will be evaluated by visualizing DEM uncertainty. As dilation occurs and the baby descends down through the pelvis a visible change occurs externally that is an indication of how far the birth has progressed. To be honest- even if the line correlates to labor and dilation, if you’re not having consistent contractions then it doesn’t really matter. The length of the purple line can vary by a centimeter or two between. There was a medium positive correlation between length of the purple line and cervical dilatation (r = +0. two edges. 4 km, almost like an arc connecting the north-western and south-western parts of the city; the line has 24 stations. 2018. As already mentioned, the two numbers, length of purple line and cervical dilation, are not perfectly correlated. Evidently there are scientific studies on it and it’s not just an old wives tale. The association between the purple line and labor is more about the baby's station in the pelvis, not necessarily dilation numbers. Instead, estimate the dilation by spreading your fingers and use the dilation chart below as a guide. Apparently about 76% of women get this that indicates cervical dilation. I have this very dark purple line running up my entire butt crack. Mathematics. Turns out there's a rather unconventional physical sign that can offer women an alternative way to check dilation -- without the dreaded vaginal exam. Apparently about 76% of women get this that indicates cervical dilation. 📌The appearance of a line of red/purple discoloration is seen to arise from the anal margin and extend between the buttocks reaching the nape of the buttocks. crazy!!. Instead, as we can see from the table above,. One non-invasive means of estimating progress is to observe the ‘purple line’ that slowly ascends from the anal margin to the top of the natal cleft (skin between the buttocks). The theory is. t. How accurate is the Purple Line dilation? Some studies have shown that the overall accuracy for cervical dilatation is between 48% to 56% with ± 1 cm error, to 89. Copy and Edit. November 16, 2021. It could be used as an alternative or supplement to the vaginal examina-Advertisement. So I’m super curious how accurate it is. (This actually worked with both my previous pregnancies but could just be. Considering the diagnostic accuracy of transverse diagonal of the Michaelis sacral and purple line, the transvers diagonal of. simbada February 7, 2023 science 0 Comments. It was during a journal’s tenth birthday celebrations and a few of us had been asked to pick our favourite article from the first decade of the journal’s history. Don’t ask me how I’ve noticed. The dashed and dotted lines indicate slopes of 2 and 1, demonstrating the O ( N 2 ) and O ( N ) scaling achieved by the direct sum and the FMM, respectively. Alllyy38. Display results as threadsAlright let me hear your stories! Any truth to the purple line on your bottom correlating to dilation? Do you have a purple line? Honestly I checked and I can’t tell! There’s no dark purple like it looks more like a raw line? But I don’t regularly check back there lol so I’m not sure if that’s always. (2) ( Fig. Getting Pregnant . Purple Line Dilation Chart. . I took a Preparing for Baby class and they mentioned that a purple line can appear as you get closer to due date/labor. I have to wait. 5 days ago | jessmill231. I've had LOTS of pelvic pressure today and I was told by a few friends and my mom to check myself for dilation. TLDR. 0% negative predictive value. Large metal or plastic mixing bowl. 1% positive predictive value, 51. 16183 Corpus ID: 11109837; The Diagnostic Accuracy of Purple Line in Prediction of Labor Progress in Omolbanin Hospital, Iran @article{Kordi2014TheDA, title={The Diagnostic Accuracy of Purple Line in Prediction of Labor Progress in Omolbanin Hospital, Iran}, author={Masoumeh Kordi and Morvarid Irani and Fatemeh Tara and. I have atretch marks on my butt cheeks so I know what they look like, but this doesn't seem to be any stretch mark. So instead of the normal pinkish line that's there it's purple and sometimes very dark. nest. While some doctors offer to perform cervix checks routinely after 36 weeks, many will only do so under certain circumstances. My midwife noticed the purple line was "complete" and decided to check my dilation. This line can tell a midwife or professional, by the length of the line, how. The further along you are in dilation, the higher the line extends. and when it reaches the top of your Crack your fully dilated. tld99. If mine is correct, it is about 6. Figure 3. 60 centimeters which says I could be anywhere from 4cm-7cm dilated. 4 cm when the cervical dilatation was 9-10 cm, whereas it was more than 7. As baby’s head descends, the intra-pelvic pressure increases and the purple line rises. Or rather – your butt crack. This number increase from 66. 1. Accuracy of simulated cervical dilation and effacement measurements among practitioners. Britney06. mlmc-22. . which one is. Introduction:. This number increase from 66. Cervix dilation symptoms: What does cervical dilation feel like and how to check if you are dilatingCervix dilation symptoms: What does cervical…The presence of purple line increased with an increase in cervical dilatation. Has anyone tried the purple line dilation? I’m curious as to how accurate it was if you did and then had a cervical exam shortly after. From what I read the line appears because of vascular compression as the baby moves. In Bryne and Edmonds the purple line appeared in 89 % of the women . 0% when cervical dilatation was 10 cm. CryptoThe cardiac cycle needs to be considered for accurate measurements. Once the line meets to the top of the crack, you're supposed to be 10cm or fully ready to go. 4% specificity, 96. 05), a good fraction tended to alternate their choices (orange symbols; 7 significant. My partner recently noticed this line all the way up my booty crack, this is new and ig I’m wondering if there’s really any correlation between tha. 0% when cervical dilatation was 10 cm. This purple line starts at the anus and goes up the back of the body, ending at the cleft of the buttocks. How to self check for dilation. Although, they say that when these lines do begin to appear, your 3-4 cm, and then as the line creeps up your bottom, your dilating more. katcent. There were no significant difference between primigravida and multigravida in appearance of purple line (p<0. Sep 6, 2021 at 9:14 PM. Before sharing sensitive information, make sure you’re on a federal government site. 255. So why don't care providers use this less invasive visual measure - especially considering how much some women may dread vaginal exams in. Red line corresponds to stimulus onset; purple line corresponds to detection of motion event. 5% of women depending on their ethnicity and skin colour tone [14,15]. The purple line appeared in 75. GameStop Moderna Pfizer Johnson & Johnson AstraZeneca Walgreens Best Buy Novavax SpaceX Tesla. Understanding the limitations of purple line dilation is essential for accurate shape. I was googling last week, as I often do and came across this as a method of checking dilation? Apparently the line grows throughout labor and is used to determine how dilated you are. Keep in mind that the thin purple line is not a perfect measure of cervical dilation. 21. what is going on? okay so one article I read said that the purple line in your butt crack will get longer the closer you get to 10 cm. They also said it depends on skin colour, women with darker skin don’t show the line the same as pale skin does. By measuring the length of this purple line and comparing it with the total length of a woman’s natal cleft (or the entire length of the crease of her butt), a midwife can determine approximately how dilated a. The presence of purple line increased with an increase in cervical dilatation. When. 42, n = 56, P < 0. but I came across this. In fact, for the cervix to. com Assess dilation. Blueberry. During training, the network that yields the. The presence of purple line increased with an increase in cervical dilatation. These differences could be because they had a different sample size or methods. 4% with a cervical dilatation of 3 cm to 84. 15 That Was Intense! – 40-Week Pregnancy Vlog // 8. Known as a somewhat imprecise assessment of dilation (48-56% accurate according to Shepherd et al, 2010 and finding differ in different studies), cervical assessment by internal exam by 2 different providers can widely differ, too. ". The Purple Line light rail has been a long-anticipated addition to the Maryland public transit system. 152123mum. So for example: at a dilation of 1-2 cm, the purple line was 5. Out of the 350 women enrolled, 61/2% were primigravidas and 38/8% were multigravidas. 5-7cm long meaning I’m about 2. The longer the purple line lengthens, the more dilation there will be and the closer the time to give birth will be. This number increase from 66. (2)purple line dilation. We proposed the system to measure objects in a real time pictures. Log In / Sign UpGreen Line (Namma Metro) is the second line of Bangalore Metro and the only one other than the Purple Line to be operational in the city presently. In total, two studies evaluated the accuracy of the appearance of the purple line for assessing labor progress, and eleven studies evaluated the use of 2D and/or 3D transabdominal and/or transperineal ultrasound, which OSA, HPD, AOP, HD, and HSD (Fig. 3 cm on average across all 109 women. If labor stalls or baby moves up again, this circulatory congestion in the "crack" can lessen. What this means is that, at a dilation of 1-2 cm, the length of the purple line of the women of the study, was not necessarily close to 5. There was a significant correlation between the length of the purple line and cervical dilatation and the station of the fetal head. gov means it’s official. (2)If one fingertip fits, the cervix is considered to be 1 cm dilated. Has anyone heard of the purple line of dilation and have any experience or thoughts about it ? I’m 36 weeks pregnant and asked my partner to take a look 😂 I never knew about it til now after researching about dilation signs ! I have a line but it looks more red than purple could it be because I am so. For women either in spontaneous or induced labour, the pooled mean length of the purple line was more than 9. khk612. I have had a slight pain in my lower back the past few days when bending over. 5-7cm long meaning I’m about 2. plays. You're considered 1 centimeter dilated if one fingertip fits through your cervix, or 2 centimeters if you can fit two fingers. It showed the purple line appeared in 75. Last night I had some back pain and…Purple line and dilation : this is one of the stranger things I’ve heard, but there seems to be science to back it up. 50; 95%CI: 0. Last edited 07-06-20. Worksheet Save Share. I’ve had some increased. How accurate is the Purple Line dilation? Some studies have shown that the overall accuracy for cervical dilatation is between 48% to 56% with ± 1 cm error, to 89. N. For Display issues one fix that is working is to Roll back or Uninstall the Driver on the Display Device > Driver tab, restart PC to reinstall driver. I guess we’ll see at my next appt if it’s accurate. For women either in spontaneous or induced labour, the pooled mean length of the purple line was more than 9. Purple line had high incidence but was not suitable for diagnosing cervical dilatation and fetal head station owing to low accuracy. tld99. 1% positive predictive value, 51. I was was reading about purple line to self check for dilation. 16183 Corpus ID: 11109837; The Diagnostic Accuracy of Purple Line in Prediction of Labor Progress in Omolbanin Hospital, Iran @article{Kordi2014TheDA, title={The Diagnostic Accuracy of Purple Line in Prediction of Labor Progress in Omolbanin Hospital, Iran}, author={Masoumeh Kordi and Morvarid Irani and Fatemeh Tara and. Purple Line Dilation Chart. . Then you will know you've tried everything in addition to Windows Update. Jumping in from another group. So I had a look in the mirror and it looks like I. Get comfortable. edu. Mindy explores the 'mystical' red/purple line that has been observed to provide information about cervical dilation without the need for a vaginal exam. This has just been brought to my attention and its just the oddest thing. m. The World Health Organization emphasizes that the number of vaginal examinations should be limited where it is necessary. We found a moderate positive pooled correlation between the purple line length with cervical dilatation (r = +0. You're considered 1 centimeter dilated if one fingertip fits through your cervix, or 2 centimeters if you can fit two fingers. 5% to 91. This study aimed to compare diagnostic accuracy of purple line with transverse diagonal of Michaelis. There was a significant correlation. This appearance has been thought to occur because of the vascular congestion at the base of the sacrum. Appearance of the purple line in the prediction Appearance of the purple line in the prediction of labor progress had 90. 15 Purple Line Dilation – What is the Purple Line in Labor? Purple Line Dilation “Club“ More parents are opting OUT of uncomfortable routine vaginal examinations in labor and prenatally (without a medical indication) and are opting. Hey moms, so my midwife said she will not check my cervix to see if I’m dilating. Disposable underwear. But, according to the theory I should be 10cm dilated. So I had cramping last week and checked and had a pretty long purple line. This morning, though, almost had a heart attack when I booted up and saw a vibrant purple vertical line running up and down the left side of the display. mu midwife said it is highly accurate, but I don’t know… maybe there’s a purple line and a darker purple line that comes later? I saw a line that would have made me 8-9cm, and when I got to the hospital I was 3-4cm. 3% of people during the active phase of labor and appearance of the purple line in the prediction of labor progress had 90. Studies also show that vaginal exams are not really accurate. Questions. The diagnostic accuracy of purple line in prediction of labor progress in omolbanin hospital, iran. )(A) Pre-dilation FCx neurons (n = 28 cells) exhibit firing increases immediately preceding onset of pupil dilation shown as dashed vertical line (0 s). 3/5 (35 votes) How do midwives check for dilation? Midwives check for dilation during labor by measuring the opening of the cervix during a pelvic exam. I’ve also feel pelvic pressure and had diarrhea. Let's look at four types of transformations: rotations (spinning a shape around a point), translations (shifting a shape), reflections (flipping a shape over a line), and dilations (shrinking or expanding a shape). Although past research has found the purple line positively correlated with cervical dilatation and fetal head descent in labor [10, 21, 24,34,35], the specificity between VE and the purple line. While some doctors offer to perform cervix checks routinely after 36 weeks, many will only do so under certain circumstances. Hobbs 1998. All 8+ how to check for purple line dilation Advanced Guide. ". 4% with a cervical dilatation of 3 cm to 84. Representative thoracic aortic ultrasound and ex vivo images are shown in Figure 5A. Where the line is present, it may provide a useful guide for clinicians of labour progress along side other. Background: Precise evaluation of labour progresses can help mothers to be consulted on time and decrease maternal and neonatal morbidities. Have any of you moms found it to be true?Purple dilation line? k. Purple dilation line Does anybody know how accurate the purple dilation line is, or has anybody ever had it appear before labour? I’m 36+ 4 today and had quite a bit of (what I presume to be) lightening crotch through the week with occasional uncomfortable pressure in my lower back. The possibilities offered to a mother when giving birth are increasingly different. Basically, the theory is that starting at 3-4cm of…It occurs in about 75% of woman with a 50% accuracy. October 26, 2023 In this blog post, Dr Sara Wickham gathers together evidence for the purple line in labour. 7 percent, and this accuracy decreases as cervical dilatation increases. statistical chart of image recognition accuracy of. 7% and this accuracy is reduced with the increase of cervical dilatation (5, 6). . plays. Try to insert the tips of your fingers into your cervix If one fingertip fits through your cervix, you're considered one centimeter dilated If two fit,can we use the purple line as a sign of progression Labor or cervical dilation instead of doing digital cervical checks let's chat about it the purple line is a noninvasive method to assess the progression of Labor now this purple line is supposed to start around the anus and then progress up the cleft of the buttocks as the fetal head comes lower into the. Am J Obstet Gynecol. The only difference is that one was rotated, turned around, to face a different direction. 1. This is a dark purple line. came across this Purple Line thing that a lot of doulas and midwives have used. I was wondering if any moms have heard of purple line dilation?. How accurate is the purple line dilation? Appearance of the purple line in the prediction of labor progress in the first stage of labor has 90. Purple line dilation. OS: Windows 7 64-bit. I've even personally observed it when attending births as a doula! The “purple line” is said to start appearing when your cervix is between zero and two centimeters dilated. Currently slated to open in 2027, the line will also enable riders to move between the Maryland branches of the Red, Green, and Orange lines of the Washington Metro. May 11, 2021 at 5:21 PM. Hello all, first timer here! I am currently 32 week and had read about the purple line of dilation that appears above your anus and grows up. I read about checking your bum for a purple line and that it's an alternative way to checking how dilated you are- I know just dilation doesn't mean labor I'm just curious if anyone has tried it and how accurate it was. 5% positive predictive value, 22.