The HPV vaccine does not usually have any effect on menstruation, but menstrual disorders are determined by the condition of the patient and are best treated in an outpatient setting. When menstrual disorders occur in women of childbearing age, the first step is to check for pregnancy-related illnesses, and blood or urine HCG may be needed.There are many reasons for menstrual disorders, including endocrine problems, and it is necessary to check for serious organic problems, and it is important to conduct a careful gynecological examination, and to do the appropriate auxiliary examinations and laboratory tests. If the cervix has abnormal redundant organisms, which can also lead to abnormal vaginal bleeding, patients may think that it is menstrual disorders, or even have cervical malignant diseases, whether there are endometrial polyps inside the uterus, these abnormal organic problems lead to menstrual disorders. Therefore, HPV vaccination does not affect menstruation, if menstrual disorders occur, timely visit the outpatient clinic, do the appropriate examination and screening, and then make a judgment.