Vaginal bleeding after sex is relatively common and can also occur on days when menstruation is not expected. Although commonly referred to as “vaginal” bleeding, the term refers to both bleeding from the vagina and bleeding from other parts of the genitals and excretory system. Vaginal bleeding after sex most often occurs in young women who have not reached menopause. It is relatively less common among older people who have passed this period. Then the condition is a reason to consult a doctor. In older women, the source of vaginal bleeding after sex is usually the cervix. Even when she is perfectly healthy, enough friction or minor trauma during intercourse can cause bleeding. Cervical inflammation or some other abnormal condition, most of which are harmless, can also cause bleeding. Sometimes, however, vaginal bleeding after sex is a sign of a sexually transmitted infection. Among postmenopausal women, this symptom can be associated with both the bladder and the external genitalia or the uterus and cervix. NEWS_MORE_BOX Possible causes of vaginal bleeding after sex include: Cervicitis – inflammation of the cervix; Polyps on the cervix – benign formations on the cervix; Friction during intercourse; Genital ulcers that are the result of sexually transmitted infections, such as genital herpes or syphilis; Insufficient lubrication during sex; Disorder of the lining of the uterus during intercourse, especially among women who use contraceptive pills; Vaginal dryness; Vaginitis.