Hello dear Understand you concern bleeding wound after intercourse is most common complaints among girls. In majority case it is not serious and will go on its own. I think it is due to rough sex. Following are the other causes of your problems: 1. Trauma to vaginal wall (If penetration without lubrication) 2. Atrophic vaginitis due to lower estrogen levels, peri menopausal state 3. Infections in the vagina: bacterial vaginosis, candida 4. Bleeding from cervix (As it contain superficial blood vessels) 5. Endometriosis, endometrial/cervix dysplasia, adenomyosis, PCOS, dysfunctional uterine bleeding If it will not stop or will occur next time. Please consult with doctor. Do your hormonal profile like: estrogen, progesterone, FSH, LH Pelvic examination PCR, NAAT, and ELISA for vaginal infections Cell culture and gram stain of discharge PAP smear test. Endometrial biopsy Ovarian follicle study Advice: Use condoms and lubrication during sex Estrogen ointment can be applied before sex Maintain pelvic hygiene after and before urination. Wear pure cotton loose inner wear Drink plenty of fluids Empty the bladder after sex Healthy diet with vitamin and minerals supplements Limit caffeine, salt and nicotine Healthy lifestyle Stretching and regular exercise . Sleep of at least 8 hours Hope this may help you. Wish you good health. Best regards Dr. Sagar