Excessive bleeding after sex: what to know

Small surface tears, vaginal dryness, cervical irritation and infections such as chlamydia can cause bleeding after penetration. Hormonal changes around menopause can make vaginal tissues thinner and more fragile. Cervical dysplasia, cervical cancer or, less commonly, vaginal cancer can also present with bleeding after sex. A bleeding episode does not establish any of these diagnoses; examination is needed to identify the source.

A clinician may ask about pregnancy possibility, contraception, discharge, pain, last cervical screening and whether bleeding happens outside sex. They may examine the vagina and cervix, test for infection, and arrange further investigation when findings require it.

Arrange a gynaecology or primary-care review rather than ignoring repeated episodes. Note when bleeding starts, how long it lasts, whether it follows penetration, and any pain or discharge. Avoid sex until heavy bleeding or significant pain has settled. Do not use leftover antibiotics. If a cervical abnormality needs investigation, a cone biopsy is one procedure a specialist may discuss; its suitability depends on the examination and test results.

Seek urgent care if bleeding is heavy or persistent, you feel faint or weak, have severe pelvic or abdominal pain, or could be pregnant. Fever with pelvic pain or unusual discharge also warrants prompt assessment. Bleeding after sex during pregnancy should be discussed promptly with the maternity team.

Where might the blood be coming from? Do I need infection testing or cervical assessment? Is my cervical screening up to date? What should I do if bleeding returns, and would a cone biopsy be relevant?