02/12/2025
In around 76% of birthing people, a line — often purple (but it can also appear red or white on darker skin tones) — may rise up along the cleft as labour progresses. This phenomenon, more common in those who go into spontaneous labour, is thought to be linked to vasocongestion at the base of the sacrum.
While vaginal examinations remain a standard way to measure cervical dilation, they’re not always accurate and can feel intrusive for some during labour. Observing the purple line offers a potential alternative that respects the labouring person’s comfort.
Edit: heeeey maga ‘Christian’ white women (who are, in fact, also people). Thanks for boosting my engagment with your outrage ✌🏻
