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 along with UTI/Cystitis/Urethritis
Following are the causes of your problems:
1. Trauma to vaginal wall (If penetration without lubrication)
2.
Atrophic vaginitis due to lower estrogen levels
3. Infections in the vagina:
bacterial vaginosis, candida
4. Bleeding from cervix (As it contain superficial blood vessels)
5.
Endometriosis, endometrial/cervix dysplasia
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
To exclude cervical cause do
PAP smear test.
Endometrial biopsy
Advice:
Drink plenty of fluids
Tablet septran
Use condoms and lubrication during sex
Maintain pelvic hygiene after and before urination.
Wear pure cotton loose inner wear
Empty the bladder after sex
Do not delay in empty the bladder.
Always completely empty the bladder
Hope this may help you.
Wish you good health.
Best regards
Dr. Sagar