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Living with Postorgasmic illness syndrome

A rare condition in which flu-like and allergy-like symptoms develop after orgasm and last a few days.

Understanding Postorgasmic illness syndrome

Postorgasmic illness syndrome (POIS) is a rare condition in which a person gets flu-like and allergy-like symptoms after orgasm.

It can follow orgasm with a partner, by masturbation or during sleep. It is mostly reported in males after ejaculation, and rarely in females. Symptoms can start within seconds, minutes or hours and usually last 2 to 7 days before going away on their own. It can cause great distress for people and their partners.

Signs & symptoms

Symptoms vary from person to person. GARD lists these among the most common:

  • Tiredness and weakness
  • Headache
  • Fever
  • Mood changes and irritability
  • Memory or concentration problems
  • Stuffy nose, sore throat and itchy eyes

Not everyone has every symptom. GARD's list comes from the Human Phenotype Ontology.

Diagnosis

  1. Talk with your doctor

    Share the symptoms you've noticed, when they started and your family health history. Notes and photos can help.

  2. See a specialist

    Specialists who may be involved include autoimmune and inflammatory disease specialists.

  3. Ask which tests can help

    Your care team will decide which exams and tests can confirm the diagnosis.

Care & treatment

Care team
autoimmune and inflammatory disease specialists (rheumatologists)
Expert care
Ask about multidisciplinary care centers for rare conditions
Treatment
GARD doesn't list specific treatments for this condition. Your care team will tailor care to your symptoms.
Research
Clinical trials and observational studies may be options. See the research section below.

General information, not medical advice. Your care team makes the decisions.

Everyday life

Living with a rare condition is easier with support.

  • Connect with rare disease patient organizations for support
  • Keep notes on symptoms, changes and questions for appointments
  • Ask about patient registries that help research
  • Look into financial aid and travel resources for care visits
Bring these questions to your next doctor visit
What tests or specialists can help confirm POIS?
What treatments or ways of managing symptoms might help?
Where can my partner and I find support?

Quick facts

Symptoms usually startTeenager and as an Adult

GARD says the cause is not known. Some scientists think it may be an autoimmune or allergic reaction to a substance in a man's own semen. Others think it may come from a chemical imbalance in the brain.

Also known as: pois

Patient organizations

Rare-disease groups that can help

Source: NIH GARD · Postorgasmic illness syndromeGARD ID 10809 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

You are more than your diagnosis

Perspectives from people navigating life with Postorgasmic illness syndrome.

Explore the Postorgasmic illness syndrome blog

Explore research for Postorgasmic illness syndrome

Explore actively recruiting Postorgasmic illness syndrome studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Postorgasmic illness syndrome with HealthSpark. Share your city to explore research near you.

  • Recruiting studies from ClinicalTrials.gov
  • Share your city to look for research near you
  • Eligibility is confirmed by the study team

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Powered by HealthSpark, our AI chat helper · Study information from ClinicalTrials.gov · Eligibility is confirmed by the study team.

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