Why does menstrual disorder occur after abortion?

After an abortion, the ovaries can generally resume ovulation within 20 days, and menstruation will begin in about a month. However, some patients experience menstrual disorders such as increased menstrual flow, shortened or prolonged menstrual cycles, prolonged menstrual duration, and amenorrhea within 3 to 6 months after an abortion. The reasons may be as follows:

1. Menstruation is the result of the interaction between the cerebral cortex, hypothalamus, pituitary gland, ovaries and endometrium. When a person is under excessive tension, fear, sadness, overwork and surgery, the neuroendocrine system can inhibit the functions of the hypothalamus, pituitary gland, ovaries and uterus, leading to abnormal menstruation.

2. After abortion, the human chorionic gonadotropin disappears suddenly, so that the ovaries cannot respond to the gonadotropin secreted by the anterior pituitary gland in a short period of time, thus causing irregular menstruation.

3. During the abortion process, excessive suction and curettage of the uterus will damage the basal layer of the endometrium with regenerative ability, making the endometrium unable to regenerate and causing the patient to suffer from long-term amenorrhea.

Most menstrual disorders can recover naturally, while a few persistent abnormalities can be treated as menstrual dysfunction.