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Abnormal bleeding during or after intercourse could be suggestive of underlying serious issues. The causes could be infections like Gonorrhea or Chlamydia, PID, vaginitis, ovarian cysts, uterine fibroids, use of hormonal contraceptives itself, endometritis, endometriosis, adenomyosis, cervical dysplasia, etc. Only after a careful examination and investigations (vaginal swab/smear test, PAP smear test, hormonal analysis) the exact cause can be made out. The hormonal and blood work-up done will help in ruling out hormonal derangements and bleeding problems. Ultrasound scan will help to rule out structural problems and possibility of ovarian cysts, presence of polyps, fibroids etc. PAP smear will test for cervical erosion/dysplasia and vaginal swab/smear test will help to rule out infective causes. Treatment as needed (based on your examination and investigation results) would be started to help you. Do not delay in visiting your doctor/gynecologist for further evaluation and management.
Take care.