If there is stomach pain and vaginal bleeding, if there is no history of menopause, the most common clinical causes are as follows: first, there is chronic pelvic inflammation; second, endometriosis; third, pelvic tumor; fourth, there are lesions in the endometrium, all of which may result in the above symptoms. It is recommended to do ultrasound examination, gynecological examination and routine blood test to understand whether the uterine adnexa is abnormal through ultrasound examination, and if there is pelvic inflammation, to actively anti-inflammatory treatment. If echogenic unevenness or abnormal thickening of the endometrium is found, it is recommended to do diagnostic scraping to understand the lesions of the endometrium through scraping while controlling the inflammation.