its when u shed the lining of the uterus.
The inner layer of the endometrium is shed as menstrual fluid
endomoetrium
The uterus has 3 layers: Endometrium. This is the inner lining. It is shed during your period.
I recommend taking it to the dry cleaners. Putting it in the washing machine might make the denim run and end up slightly staining the sherpa lining.
It is called as menses or periods.
Premenstrually the lining thickens and is later shed if there is no fertilized egg to implant into the lining. A hormonal imbalance, infection or endometriosis can all cause a thickening of the lining, irregularly during your cycle.
During your period, the nutrient-rich lining that's been forming for almost a month is shed, if no pregnancy has occurred. This lining is need for the baby, so if your pregnant, it's not shed, and hence, no period during the pregnancy, or a time thereafter.
When the egg is not fertilized and you're not pregnant, the egg comes out and so does the lining of the uterus since no embryo is attached to it. When the lining shed, you bleed.
Progestrone causes the uterine lining to thicken in preparation of a fertilized egg. If no egg is fertilized, the thick lining is shed as a menstrual cycle.
Your hormones trigger your uterus to shed the blood lining that has been building up.
The process in which the endometrium of the uterus is shed from the body is called menstruation.