Every girl has her period every month, and the physical and physiological torment that comes with it is very painful. Some girls are not very familiar with various menstrual conditions. When does menstruation specifically occur? What is menstruation again? Don't worry, let's learn more about it together with the editor!
When does menstruation come
Adolescent women experience periodic changes in the endometrium due to the secretion of sex hormones by the ovaries. The endometrium sheds once a month, and the shed mucosa and blood are discharged from the body through the vagina. This bleeding phenomenon is called menstruation. It is called menstruation because most people experience it once a month.
The first menstrual period for a young girl is called menarche, which is one of the important signs of puberty. The age of menarche is around 10-17 years old.
What is menstruation
Menstruation is a physiological cycle that occurs between some fertile female humans, chimpanzees, and other hominids. Cows, mares, camels, sows, ewes, etc. also experience menstruation, while some mammals go through the estrous cycle. Women of childbearing age and female primates experience periodic changes in endometrial thickening, vascular proliferation, glandular growth and secretion, as well as endometrial collapse and shedding accompanied by bleeding, approximately every month. This periodic vaginal or uterine bleeding phenomenon is called menstruation.
When does menstruation usually occur? As introduced in this article, the specific timing of menstruation varies depending on each person's physical condition. When blood flows out of the vagina, it is likely that menstruation has begun. In addition, this article also introduces what menstruation is, hoping to be helpful to friends.
