1.What is menopause? Menopause is a phenomenon in which a woman reaches a certain age and her ovarian function naturally declines, her follicular reserve is depleted, she does not have cyclic hormonal changes, she no longer has cyclic menstruation, and there is a series of manifestations of estrogen decline. The average age of menopause in Chinese women is 49.5 years, and menopause usually occurs before the age of 40, which is considered to be premature ovarian failure. There are also cases where the age of menopause is delayed and the ovaries are still functioning at the age of 55, still able to ovulate and have regular periods. This shows that the fundamental meaning of menopause does not lie in menstruation itself, but in ovarian function. Not having menstruation is not the cause, but the effect, the result of menopause. 2. What is menstruation all about? Menstruation is a phenomenon in which the endometrium is affected by the endocrine secretion of the ovaries and undergoes cyclic changes with the cyclic changes of estrogen and progesterone secreted by the ovaries, and bleeding is shed periodically. If you can’t understand it, you can also understand it this way: each menstruation is equivalent to the endometrium shedding a layer of skin, menstruation is to bleed when shedding skin. This can be understood, there is a normal endometrium before menstruation, there is a uterus and there is a normal endometrium before menstruation. 3, no menstruation ≠ menopause Some women, because of various diseases may be in their 30s at an early age to remove the uterus. The uterus is gone, so naturally they won’t have a period, but that doesn’t mean they are menopausal, because the ovaries are still functioning, they won’t be menopausal, their age of menopause is still about 40 to 50 years old. It is only that without the uterus as the organ that sends out menopausal signals, we cannot visually tell when they are menopausal, and we can only find out if they have reached menopausal age by checking their sex hormone levels. The abortion will not cause menopause, nor will the low menstrual flow, nor will the sporadic menstruation caused by other diseases. 4. Are there any factors that may cause early menopause? Premature menopause is professionally called premature ovarian failure and is only diagnosed before the age of 40, while menopause after 40 is considered normal. Most of the causes of premature ovarian failure are not clear, and may be related to the ovarian innate reserve function or to immune factors. In addition, some medical factors may cause premature ovarian failure, such as ovarian damage caused by surgery, oophorectomy, radiation damage to the ovaries caused by radiotherapy, etc. may cause premature ovarian failure.