Abnormal uterine bleeding refers to uterine bleeding in which one or more of the frequency, regularity, amount or duration of bleeding differs from normal menstruation. If abnormal uterine bleeding occurs, patients are advised to go to the hospital for relevant examinations as early as possible, mainly in the following areas: 1. Gynecological examination: for examining the vagina, cervix and uterus to clarify whether there are organic changes; 2. HCG examination: for women of reproductive age who have normal sex life, if there is abnormal uterine bleeding then HCG examination is needed to exclude pregnancy-related abnormalities, such as ectopic pregnancy or 3. Ultrasound examination: to check whether there are changes in the endometrium, whether there are proliferations in the uterine cavity, and whether there are abnormal masses in the ovaries and bilateral adnexa; 4. Endocrine examination: to determine the cause of abnormal uterine bleeding through endocrine examination, such as hormone six examination; 5. 6. Uterine biopsy: Uterine biopsy is a fast and accurate way to confirm abnormal uterine bleeding in clinical practice; 7. HPV examination: to exclude precancerous lesions of the uterine cervix. When abnormal uterine bleeding occurs, you should go to a regular hospital in time to avoid serious adverse consequences caused by improper treatment.