The symptoms of menstrual disorders are as follows: 1. irregular menstruation: dripping irregular bleeding for a particularly long time and a particularly large amount of blood, some patients show dripping menstruation, too much blood can cause anemia, dizziness and other symptoms; 2. scanty menstruation, short menstrual flow and period; 3. frequent menstruation: such as twenty days or ten days to have a menstrual period; 4. long menstrual cycle: if a patient does not come for one month menstruation, 40 days, 50 days without menstruation, especially anxious; 5. Irregular menstrual cycle. True menstruation is regular and self-limiting, and loss of regularity is menstrual disorder. There is a kind of menstrual disorder is internal and external organic, need to check whether there is organic lesion, no organic lesion need to determine whether endocrine disorder caused by uterine bleeding, this is the most common cause of menstrual disorder, most common in adolescence, menopause. This is the most common cause of menstrual disorders, most commonly seen in adolescence and menopause. Women in these two periods are prone to menstrual disorders because their ovaries are not yet mature and menopause because their ovaries are declining. Vaginal bleeding after menopause is not a menstrual disorder, but a disease, usually caused by malignant tumors or inflammation, and requires a determination of whether there is endometrial cancer, cervical cancer, or ovarian cancer. Older patients with senile vaginitis or endometritis may also have vaginal bleeding. If the menstruation does not come, it is also a menstrual disorder. The most serious case of menstrual disorder without menstruation is called amenorrhea, which means that a girl has never had a period until she is 16 years old and is considered primary amenorrhea. Secondary amenorrhea is when a girl has never had a period until the age of 16, and no more periods come after 3 cycles. Amenorrhea is also one of the manifestations of menstrual disorders. Another manifestation of menstrual disorders is dysmenorrhea, premenstrual tension syndrome, which means that the patient is particularly uncomfortable before menstruation, moody, inattentive, particularly irritable, irritable, insomnia or breast swelling and pain, very uncomfortable. Patients with polycystic ovary syndrome may also manifest as menstrual disorders, with scanty menstruation, absence of menstruation or anovulation, and patients may also have hirsutism, obesity, acne, etc. Patients with menopausal syndrome may also show symptoms of premenstrual vegetative disorders, such as paroxysmal sweating and hypogonadism.