What happens when the endometrium sheds during menstruation?

I believe that every girl has experienced endometrial shedding during menstruation. Some people feel very panicked when encountering this phenomenon, wondering if they have some disease that causes endometrial shedding. So what causes the endometrium to shed? Is it normal for the endometrium to shed during menstruation? Let's see what the doctor says.

After puberty, the ovaries gradually develop under the stimulation of gonadotropin secreted by the hypothalamus-pituitary gland. Under the action of pituitary follicle-stimulating hormone, the follicles gradually grow, mature, and secrete large amounts of estrogen. Under the action of estrogen, the endometrium proliferates and thickens, showing proliferative changes. Under the action of luteinizing hormone, the mature follicle ruptures and discharges the egg. After ovulation, the follicle forms a corpus luteum, and the luteal cells secrete progesterone. Under the combined action of estrogen and progesterone, the endometrium further proliferates and shows secretory phase changes due to the secretion of its glandular epithelial cells. If the egg is not fertilized, the corpus luteum begins to shrink. The average lifespan of the corpus luteum is 14 days.

After the corpus luteum atrophies, the levels of ovarian estrogen and progesterone drop rapidly, causing the endometrium to lose support and atrophy, and then fall off due to ischemia and necrosis, then vaginal bleeding occurs, which is commonly known as menstruation, or the shedding of the endometrium during menstruation. The endometrium is not static. It undergoes corresponding cyclical changes based on the cyclical secretion of ovarian hormones throughout the menstrual cycle. The shedding of the endometrium occurs during the menstrual period of the menstrual cycle. Menstruation occurs between the 1st and 4th day of the menstrual cycle.

The necrotic endometrium sheds and bleeds, which manifests as menstruation and the beginning of the next menstrual cycle. The main changes during the menstrual period are the shedding of the endometrium and bleeding. Next, the intima is repaired starting from the base, and new blood vessels grow from the broken ends of the blood vessels. If the shedding of the endometrium during menstruation is normal, don't worry too much. The shedding of the endometrium is part of the process of menstruation. All women are like this.

After your period, the lining of your uterus will be very thin. The endometrium will grow upwards little by little, and when it reaches a certain thickness, menstruation will occur. If you get pregnant at this time. The fertilized egg will attach to the endometrium. It is a preparation for pregnancy anytime and anywhere. So if the endometrium sheds normally, it is a normal phenomenon, but if the endometrium sheds a lot, you need to go to the hospital for relevant examinations.

It turns out that menstruation is caused by the shedding of the endometrium. The endometrium also undergoes corresponding cyclical changes according to the menstrual cycle. Do you all understand? It is normal for the endometrium to shed during menstruation. However, when the endometrium sheds severely, there will be a problem. However, when you encounter this problem, as long as you go to the hospital for examination in time and follow the doctor's instructions, you will recover soon.