If the bleeding is not heavy, it may be ovulation bleeding; if the bleeding is heavy or the bleeding is prolonged, it belongs to abnormal uterine bleeding, which may be caused by endometrial polyps or endocrine disorders, or cervical polyps and other reasons. It is recommended to go to the hospital for timely examination. Gynecological examination should be performed to find out the condition of the cervix and whether there are any polyps in the cervical canal. Color ultrasound examination to understand the uterine adnexa and endometrium, if there is uneven echo or other abnormalities of the endometrium, can be further hysteroscopy, hysteroscopic endometrial biopsy or diagnostic scraping to understand the situation of polyps. Gynecological examination, if the abnormal uterine bleeding is caused by polyps in the cervical canal, cervical polyp removal can be performed. If there is no abnormality, or if the abnormal uterine bleeding is caused by endocrine disorders, medication can be given to adjust the menstrual cycle to stop the bleeding.