Having light blood after urinating with paper after intercourse may be due to urethral or vaginal injury caused during intercourse, wound bleeding, or urinary tract infection, urinary tract stone, or urinary tract tumor. In addition, women may have light blood after urinating with paper wipe after intercourse may be caused by gynecological diseases, such as cervicitis, vaginitis, cervical polyps, etc., or may be caused by menstrual pollution. 1, wound bleeding during intercourse: If the action or posture during intercourse is improper, it may lead to skin breakage in the anus and urethra of one or both parties, so after urination, blood can be revealed with the wipe of paper towel, forming Light blood water, but the bleeding is usually very small and can heal on its own within a few days. It is recommended that the daily should try to avoid the process of sex too rough to prevent the formation of unnecessary external trauma; 2, urinary tract infection: If one or both parties in the process of intercourse itself exists urinary system inflammation, such as cystitis, urethritis, etc., some movements during intercourse may lead to external compression of the female vagina or both urethra, which in turn leads to some bacteria in the contact area through the urethral opening, forming an upstream infection The result is that the inflammatory reaction may be aggravated and the situation of light blood after urinating with paper after intercourse may occur. Although there are more types of urinary tract infections, the treatment mainly takes anti-infective drugs, commonly used anti-infective drugs such as amoxicillin, ofloxacin, etc.; 3, urinary tract stones: If ultrasound examination reveals stones, the stone embedment will cause damage to the ureter, bladder and other parts of the ureter, which will cause bleeding, resulting in light blood after urinating after intercourse, with paper wipe. Clinically, surgical treatment is mainly adopted, and the specific treatment method basically depends on the size of the stone to choose different lithotripsy; 4, urinary tract tumors: tumors of the urinary system, such as bladder cancer, can also cause this kind of situation to occur, treatment is mainly surgical, can take partial or radical resection to remove the lesion, and later combined with radiotherapy and other adjuvant treatment. Generally when the primary disease is controlled, the bleeding with paper after urinating after intercourse will gradually decrease; 5, gynecological diseases: common ones such as vaginal inflammation, cervical inflammation, etc. Inflammation stimulates mucosal cells and can cause damage and bleeding. Treatment is generally under the guidance of doctors using antibiotic drugs for treatment, such as azithromycin, doxycycline, etc.; 6, menstrual contamination: after intercourse, if it is the end of the menstrual period, menstrual blood mixed into the urine can also be manifested as a light blood after urination with paper wipe, generally after the end of menstruation this situation will also disappear.