The treatment of 37 days without menstruation needs to vary from person to person, and the common measures are as follows: 1. Clinical observation: young girls with menstruation within 2 years may not have a well established sex hormone axis and have a messy menstrual cycle. If the bleeding volume is not large and the bleeding time is not long, the first 2 years can be observed without special treatment; 2. determine whether pregnancy: women of childbearing age who have sexual intercourse should consider the possibility of pregnancy, and can go to the hospital to check the blood HCG. determine the normal pregnancy test procedure after pregnancy, if pregnancy is excluded, you can do ultrasound to see the thickness of the endometrium, if the endometrium is thick, you can use expectant therapy, or progesterone to make menstruation 3. Check sex hormones: Some patients with scanty menstruation can have a sex hormone test to rule out diseases caused by sex hormone disorders. For women who have entered the perimenopause, such as those around 50 or 45 years old, 37 days without menstruation may be due to the decline of ovarian function, resulting in insufficient estrogen levels in the body and poor endometrial growth, so you can go to the hospital for sex hormone examination to clarify the cause and make adjustments according to the doctor’s recommendations.