Why do I get headaches after sex?
Last updated September 3, 2026.
Sex headaches are usually benign and treatable - but a first-ever sudden severe headache at orgasm can be a brain bleed and needs same-day emergency assessment. Once cleared, preventives exist.
What to do
- First thunderclap at orgasm: emergency today - benign and bleed are indistinguishable at home.
- Vomiting, stiff neck, weakness: emergency - same rule.
- Cleared and recurring: ask about preventives - pre-sex medication is an option.
- Track the triggers - clusters often stop on their own within months.
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