Blood in the toilet but no menstruation may be caused by ovulatory bleeding or fertilized egg implantation, which are physiological factors, or may be caused by gynecological, urinary or digestive diseases, which need to be analyzed on a case-by-case basis before targeted treatment. Physiological factors 1. ovulatory bleeding: women of childbearing age may have transient vaginal bleeding during ovulation, the amount of blood is small, no other discomfort, no special treatment is needed; 2. fertilized egg implantation: may cause transient vaginal bleeding, mostly about 7 days after sexual intercourse, bleeding is small, short duration, can be observed first. 2, gynecological diseases 1, ectopic pregnancy: the patient is menopausal for more than 1 month, if the fertilized egg is implanted outside the uterine cavity, such as fallopian tubes, ovaries, etc., it may cause abnormal vaginal bleeding, may be accompanied by abdominal cramps, in serious cases, there may be severe abdominal pain, hemorrhagic shock, etc., which can endanger life, and requires timely surgery at the hospital; 2, pre-eclampsia: the same history of menopause, examination suggests intrauterine pregnancy, the patient is accompanied by The patient has abnormal vaginal bleeding, abdominal pain, etc., which can be treated with fetal preservation, and in serious cases, the pregnancy needs to be stopped and the uterus needs to be cleaned up; 3, fibroids: related to female hormones, especially submucosal fibroids, which can have symptoms such as incomplete menstruation and prolonged menstruation, etc., which need to be treated according to the size and location of fibroids and whether to preserve the reproductive function; 4, cervical cancer: caused by HPV infection, which can be manifested as contact bleeding, vaginal fluid, and bloody leukorrhea after sexual intercourse and gynecological examination, requiring surgical treatment; 5. Others: such as vaginitis, cervicitis, uterine polyps, etc., requiring comprehensive analysis based on physical signs and examination results to determine the cause and treat the cause. Urinary and digestive system diseases such as renal pelvis stones, mucous membrane damage, blood may be discharged with urine; rectal polyps, hemorrhoids, anal fissures, there may be bloody stools, according to the nature of urine and stool, composition, etc. presumed bleeding site, CT, endoscopy and other examinations, timely drug or surgical treatment. It is recommended to have a comprehensive physical examination once a year, and women should pay special attention to gynecological examination and HPV virus testing for early prevention, early detection and early treatment of cervical cancer and endometrial cancer.