Causes of bleeding without menstruation: 1. inflammation of the reproductive system; 2. tumors of the reproductive system; 3. endocrine disorders caused by taking hormonal drugs; 4. mucosal damage caused by external stimulation of the local area; 5. improper intercourse and other factors. The specific etiology also needs to be determined with reference to the patient’s age, gynecological examination, gynecological ultrasound, and auxiliary examination. If it occurs occasionally, first exclude the cause of bleeding and observe whether the bleeding stops. If the bleeding occurs repeatedly, it is recommended to go to a regular hospital as soon as possible to improve the relevant examination. Wait for the results to come out and ask the obstetrician and gynecologist to make a clear diagnosis after comprehensive analysis, and follow the medical advice for treatment. Pay attention to local hygiene, regular physical examination, gynecological examination, and timely consultation for discomfort.