Evidence-based men's health information Emergency? An erection lasting 4+ hours needs urgent care.
Men's sexual health, explained

Straight answers about erections.

Erection problems are common, very treatable and nothing to be embarrassed about. Erenyl explains what's going on, what the research says and what to do next, in plain language.

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Based on clinical guidelines Sources on every page No miracle pills

You're not alone

Erectile dysfunction is one of the most common health issues in men. It becomes more common with age, but it also affects plenty of men in their 20s and 30s.

Most causes can be improved, and effective treatments exist. Persistent erection problems can also be an early sign of heart or blood-vessel issues, which is one more reason to get checked by a doctor.

Topics we cover

New guides are added every week.

Causes of EDMedicationPerformance anxietyTestosteronePelvic floorExercise & dietAlcohol & smokingOnline clinicsRelationshipsWhen to see a doctor
When to get help urgently An erection lasting more than 4 hours, chest pain during sex, or sudden loss of vision or hearing after taking ED medication needs emergency care. Never take ED medication if you use nitrates (such as nitroglycerin) for chest pain.