In clinical practice, women of childbearing age who suddenly experience menopause do not have symptoms when the menopause is just a few days old. If the menopause is caused by pregnancy, then the corresponding clinical symptoms, such as gastrointestinal reactions and localized changes in the breasts, will not appear until about 45 days after menopause. If the menopause is due to premature ovarian failure, clinical symptoms may develop over time, such as hot flashes, excessive sweating, mood changes, and clinical symptoms related to insomnia and excessive dreaming. Symptoms of menopause may also occur after the decline of ovarian function, such as loss of libido. It is recommended to do a blood HCG test to rule out the possibility of pregnancy. If you are not pregnant, it is recommended to do a sex hormone test to find out if it is caused by premature ovarian failure.