References UK clinical guidance from the NHS, the British HIV Association (BHIVA), and the British Association for Sexual Health and HIV (BASHH). Last updated: April 2026.
An itchy urethra or penis can be caused by several things — STIs like chlamydia and gonorrhoea, thrush, skin conditions or simple irritation. The itch may be internal (urethra) or external (skin). Understanding the pattern helps narrow down the cause, but testing is the most reliable way to diagnose.
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Common Causes
| Cause | Features |
|---|---|
| Chlamydia/gonorrhoea | Internal itch, discharge, burning |
| Non-specific urethritis | Internal itch with mild discharge |
| Thrush (candida) | External itch, redness under foreskin |
| Contact dermatitis | External itch from soaps or products |
| Jock itch | Groin rash, usually spares the penis |
| Herpes | Itch then blisters |
When to Test for STIs
- Recent new partner
- Discharge alongside itch
- Burning on urination
- Partner diagnosed with an STI
Self-Care
- Avoid scented soaps on the glans
- Keep the area dry
- Wear cotton underwear
- See a clinician if it persists
Read more: Balanitis | Jock itch | Painful urination in men
Frequently Asked Questions
Is an itchy penis always an STI?
No — thrush and irritation are common non-STI causes.
Should I test?
If there’s discharge or a new partner, yes.
Can thrush cause urethral itch?
Usually external, but some men report internal irritation.
Related reading
- Is Testicular Pain a Sign of an STI?
- Cold Sores vs Syphilis Sores: How to Tell the Difference
- Common STI Symptoms in Women
- Do STIs Always Have Symptoms?
- How Different STIs Affect Vaginal Discharge
Sources
- NHS — Sexual health conditions
- BASHH — UK clinical guidelines for STI management
- British HIV Association (BHIVA) — HIV treatment guidelines
- Terrence Higgins Trust — sexual health information
- UK Health Security Agency — STI surveillance data
Steve Page is a recognised expert on Sexually Transmitted Diseases (STDs) and STD treatments, having published numerous articles in peer-reviewed journals and presented his research at conferences around the world. He has an in-depth understanding of the latest medical research on STDs, and is an advocate for the development of new treatments and protocols to improve the health of those affected. In addition to his research, he has dedicated his career to understanding the causes and symptoms of STDs, as well as how to best treat those impacted.
