Why does menstruation suddenly occur?

Irregular menstruation, in other words, irregular menstruation. In daily life, most women have menstrual disorders to varying degrees, and the harm of menstrual disorders is relatively large. Generally, there are the following reasons for menstrual disorders: women's menstruation is the result of the interaction between the uterus and ovaries, which is regulated by the human neuroendocrine system. When a woman's body is in a state of extreme fear, anxiety, and sadness, she may experience menstrual disorders; if the neuroendocrine system suppresses the uterus and ovaries, it will eventually cause irregular menstruation.

Another reason is excessive dieting. Many women use excessive dieting to achieve the goal of losing weight, but in the process of dieting, women's body fat rate is very low, which will lead to insufficient energy intake, resulting in the consumption of body protein and a lot of body fat, and finally leading to the obstruction of estrogen production, and there will be a significant deficiency, so it is easy to have scanty menstruation or even amenorrhea.

Bingyue is a special term in traditional Chinese medicine, which refers to the regular menstruation of women every two months, which is a physiological phenomenon. Some women have regular menstruation once every three months, which is called seasonal menstruation; once a year, which is called abstaining from menstruation; and never have menstruation throughout their lives, but can still get pregnant normally, which is called dark menstruation. These are all special physiological phenomena. Most women still have a 28-day cycle. A week early or late is considered normal. If it exceeds the normal range, it is considered irregular menstruation and needs active treatment.

Under normal circumstances, the menstrual cycle is 28-30 days, and the interval is 3-7 days. However, due to individual differences, everyone has their own menstrual cycle. If it comes once a month and the menstrual time is regular, this is also a normal physiological phenomenon. This kind of situation occurs mainly because the uterus and ovaries regularly metabolize estrogen and estrogen for a long time, the menstrual period will be delayed, and then the ovulation time will also be delayed, usually ovulation 14 days before the next menstrual period.