What could bleeding after sex mean?

Bleeding after sex is often caused by cervical changes, dryness, polyps, contraception or infection, but it should be checked if unexplained or recurring. Arrange a GP or sexual-health appointment. Any bleeding after menopause needs assessment even if it happens once.

Can vaginal dryness cause bleeding after sex?

Yes. Friction can cause small tears, especially around menopause or breastfeeding, but recurring bleeding still deserves assessment.

Could an STI cause bleeding?

Yes. Chlamydia and other infections can cause cervical inflammation and bleeding, often without other symptoms.

Should I wait for cervical screening?

No. Screening is for people without symptoms. Contact a GP about bleeding rather than waiting for a routine screening invitation.

Bleeding after sex: When to See a GP

Common causes

Possible causes include cervical ectropion, polyps, vaginal dryness, hormonal contraception, pregnancy-related changes and sexually transmitted infections.

Assessment

A clinician may offer a pregnancy test, STI testing and examination of the vagina and cervix. Further tests depend on age, bleeding pattern and findings.

When to act faster

Heavy bleeding, severe pain, dizziness, fainting or possible pregnancy can indicate a more urgent problem. Use NHS 111 or emergency services according to severity.

Common questions about bleeding after sex

Can vaginal dryness cause bleeding after sex?: Yes. Friction can cause small tears, especially around menopause or breastfeeding, but recurring bleeding still deserves assessment.
Could an STI cause bleeding?: Yes. Chlamydia and other infections can cause cervical inflammation and bleeding, often without other symptoms.
Should I wait for cervical screening?: No. Screening is for people without symptoms. Contact a GP about bleeding rather than waiting for a routine screening invitation.

Sources

NHS — Vaginal bleeding between periods or after sex

How we reviewed this page

Medically reviewed by the HealthAnswers UK doctor review panel

First published: 1 August 2026
Medically reviewed: 1 August 2026
Next review due: 1 August 2029 or sooner if NHS or NICE guidance changes

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