Premenopause, also known as perimenopause, refers to the period of reproductive transition from childbearing to old age in women. In some patients, the decline or loss of ovarian function causes dysfunction of the hypothalamus, pituitary gland and total ovarian function, which can lead to a range of symptoms. The following are some of the symptoms of menorrhagia: 1) menstrual disorders: patients may experience scanty menstruation or incomplete menstrual bleeding, called dysfunctional uterine bleeding; 2) autonomic dysregulation: autonomic dysregulation can lead to palpitations, insomnia, panic and irritability; 3) vasoconstriction: such as hot flashes and night sweats; 4) psychoneurotic factors: emotional irritability and irritability; 5) genitourinary diaphragm diseases 6. Some patients may suffer from osteoporosis and fracture easily; 7.