Before normal menopause, women may experience the following symptoms: 1. Menstrual disorders: Menstrual disorders are common symptoms before menopause, due to sparse ovulation and anovulation, manifested by irregular menstrual cycles, long period duration, increased menstrual flow and decreased menstrual flow. 2. Vasoconstriction symptoms: mainly manifested by hot flashes, characterized by recurrent brief bouts of redness of the skin of the face, neck and chest, accompanied by baking heat and sweating, which It usually lasts 1-3 minutes. In severe cases, more than 10 times or more may occur, and they are easily triggered at night and under stress. 3. Autonomic dysregulation: There are also symptoms of autonomic dysregulation such as palpitations, vertigo, headache, insomnia, and tinnitus.