There are many causes of non-menstrual bleeding that are not simply fixed to 6 causes. They can be broadly categorized into 6 conditions, but are not limited to these elements. Common non-menstrual bleeding when considered may be related to genital inflammation, endocrine disorders, contraceptive pill use, abnormal pregnancy, dysfunctional uterine bleeding, and tumors: 1. Genital inflammation: Vaginitis, cervicitis, endometritis, adnexitis, and pelvic inflammatory disease can cause patients to experience a small amount of vaginal bleeding. Among them, vaginitis may be accompanied by vulvar itching, senile vaginitis may appear postmenopausal vaginal bleeding, cervicitis bleeding often after sex, endometritis is often accompanied by more severe dysmenorrhea, adnexitis may be accompanied by unilateral abdominal pain, pelvic inflammatory disease may be accompanied by lower abdominal distension; 2, endocrine disorders: when patients have endocrine disorders, it will lead to lower levels of ovarian secretion of estrogen and progesterone, and eventually cause uterine endometrial shedding and bleeding, which may also be mistaken for non-menstrual bleeding because the cycle is not regular and may be long in advance or delayed; 3, taking contraceptives: after patients take emergency contraceptives, or after stopping taking short-acting contraceptives, they may have withdrawal bleeding, which is manifested as non-menstrual bleeding; 4, abnormal pregnancy: common ones are preterm abortion, ectopic pregnancy, and bleeding in the bed, ovulatory bleeding, etc., all of which will The bleeding may occur during non-menstrual periods, and may be accompanied by vague pain or distension in the lower abdomen; 5. Termination of pregnancy: non-menstrual bleeding may occur after medical abortion, abortion, etc. due to rapid changes in hormone levels in the body or damage to the endometrium; 6. Dysfunctional uterine bleeding and tumors: when suffering from endometrial polyps, adenomyosis, fibroids, endometrial cancer or cervical cancer, and other structural changes in the uterus, or suffering from endometrial cancer, the uterus may bleed during non-menstrual periods. When suffering from structural changes of the uterus such as uterine polyps, adenomyosis, uterine fibroids, endometrial cancer or cervical cancer, or suffering from systemic diseases such as coagulation dysfunction, non-menstrual bleeding may occur, which requires consultation and examination to determine the specific cause according to the examination results. In addition, when the amount of bleeding is small, it usually does not affect the body too much; if there is a lot of bleeding and persistent bleeding, it is recommended to go to the hospital for relevant examination in time.