Disorders that manifest as menstrual cycle or bleeding are as follows: 1. Irregular uterine bleeding. This includes: excessive menstruation or prolonged duration. It is common in uterine fibroids, endometrial polyps, endometrial hyperplasia, endometriosis, etc.; menorrhagia, low menstrual volume and duration; frequent menstruation i.e. menstrual interval less than 25 days; prolonged menstrual cycle i.e. menstrual interval longer than 35 days; irregular bleeding, which can be caused by various reasons and bleeding all irregular. The above conditions can be caused by local causes, endocrine causes or systemic diseases. 2.Functional uterine bleeding. It refers to abnormal uterine bleeding caused by endocrine regulation system disorder without obvious organic lesion of internal and external genitalia. It is the most common type of menstrual disorder and is commonly seen in adolescence and menopause. There are two types: ovulatory and anovulatory. About 85% of cases are anovulatory. 3. Post-menopausal vaginal bleeding. It refers to bleeding 6 months after the cessation of menstruation, often caused by malignant tumors, inflammation, etc. 4. Amenorrhea. Refers to never having a menstrual period or stopping for more than 3 cycles after the menstrual cycle has been established. The former is primary amenorrhea and the latter is secondary amenorrhea. Abnormal menstrual manifestations or complications of other symptoms are as follows: 1. Dysmenorrhea. Combined with severe pain in the lower abdomen during menstruation, which affects work and daily life. There are two types: primary and secondary. 2. Premenstrual syndrome. A series of abnormal signs that appear in a small number of women before menstruation, such as mental tension, emotional instability, lack of concentration, irritability, depression, insomnia, headache, breast swelling and pain. Most of them are caused by the imbalance of sex hormone metabolism and mental factors. Treatment is based on proper rest, sedation and diuretics if necessary, and anti-estrogen therapy such as progesterone, androgens and bromocriptine. 3. Polycystic ovary syndrome. The cause is unknown. It is characterized by sporadic menstruation or amenorrhea, infertility. Symptoms such as hirsutism and obesity, with polycystic enlargement of both ovaries, can be treated with hormone and surgery. 4. Menopausal syndrome. Some women have a series of symptoms of vegetative disorders around menopause, such as hypogonadism and paroxysmal bleeding.