For women with scanty menstrual flow, the following tests are needed: 1. Sex hormone level test, mainly to check the six sex items, which can reflect whether the scanty menstruation is caused by insufficient hormone secretion. 2. Gynecological ultrasound, which can observe whether the scanty menstruation is caused by endometrial lesions, and whether the scanty menstruation is caused by ovarian abnormalities, the main common ovarian lesions are polycystic The main common ovarian pathologies are polycystic ovary syndrome and ovarian cysts. The main common ovarian pathologies are polycystic ovary syndrome and ovarian cysts. 3. routine examination of the leukorrhea, gynecological inflammation can also cause scanty menstruation, including pelvic inflammatory disease and endometritis, etc. 4. routine gynecological examination can exclude scanty menstruation caused by abnormal development of reproductive organs. 5. routine blood tests can check whether the patient is suffering from severe anemia.