Hello dear Understand you concern bleeding 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 vaginal infections or rough in your case Following are the causes of bleeding after intercourse Infections in the vagina: yeast, chlamydia, gonorrhea, Trauma to vaginal wall (If penetration without lubrication), Atrophic vaginitis due to lower estrogen levels Bleeding from cervix (As it contain superficial blood vessels), endometrial/cervix dysplasia, endometriosis. If it will not stop or will occur next time. Please consult the gynecologist. Do your hormonal profile like: estrogen, progesterone, FSH, LH To exclude cervix cause do PAP smear test, endometrial biopsy Screening for STD infection: swab test, PCR, Gram stain, NNAT, Cell culture Advice are below: Use lubricants and condoms during sex Insert penis when the vagina get fully wet Maintain hygiene before and after sex and urination Avoid sex and douching till you get better Wear pure cotton loose inner wear Antibiotics: single dose of azithromycine, flucanazole and tinidazole Use liquid base lotion that contain vitamin and minerals If not resolves take proper treatment after diagnosis Hope this may help you. Wish you good health. Best regards Dr. Sagar