EDIT: I probably should have said why does *menstruation* last so long
I know every women is different and this doesn’t apply to everyone, but many women experience 2 heavy days, 1 medium day and then 2 extremely light days. How come our bodies can’t rid it all in 3 days instead of dragging it out into 5 with 2 almost pointless days?
In: Biology
First of all, what you are talking about is not the menstrual cycle, but about the menstruation. When you talk about a menstrual cycle you are talking about the whole 28 ish day process for a female body to prepare for a possible pregnancy. With that out of the way, menstrual blood is not just bleed, its endometrial cells that are being “shed” from the uterine walls. This is actually a gradual process as hormone levels drop, and that is one of the reasons it lasts for some days, because the hormone drop is not really that uniform. Evolution could have developed a way to do it in one day quickly if it saw the need to, but if you think about it, that would cause you a great deal of pain as the muscle around your uterus contracts to expell the endometrial cells. So it rather does it slowly and delicately.
Latest Answers