Why is my penis smelly and sore?

Your penis may be smelly and sore if:

Smegma

If you don’t wash your penis every day, a cheesy-looking substance called smegma can build up. Smegma is a natural lubricant that keeps the penis moist. It’s found on the head of the penis (glans) and under the foreskin.

If smegma builds up in the foreskin, it can:

  • start to smell
  • prevent easy foreskin movement
  • become a breeding ground for bacteria

This can cause inflammation (redness and swelling) of the head of your penis, called balanitis.

Balanitis

As well as poor hygiene, balanitis can develop for other reasons, including:

  • an infection, such as thrush
  • skin conditions, such as psoriasis, which causes itchy, flaky patches of skin 
  • irritation to the skin, for example, caused by soap, medication or condoms

See your GP if you think you may have balanitis. They will be able to diagnose your condition and treat the underlying cause. Read more information about treating balanitis.

Sexually transmitted infections (STIs)

An STI can sometimes cause a sore and smelly penis. Some examples of STIs and their symptoms include:

  • gonorrhoea: this can cause an unusual white, yellow or green discharge from the tip of your penis, pain or a burning sensation when urinating and inflammation of the foreskin
  • chlamydia: this can cause a white, cloudy or watery discharge from the tip of your penis, pain when urinating and pain in the testicles

Non-specific urethritis (NSU)

Urethritis is inflammation of the urethra (the tube running from the bladder to the tip of the penis). Urethritis is normally caused by an STI but if the cause is unknown, it’s called non-specific urethritis (NSU). NSU can make your penis sore.

Symptoms of NSU include:

  • a white or cloudy discharge from the tip of your penis
  • a burning or painful sensation when you urinate
  • the tip of your penis may feel irritated and sore
  • a frequent need to urinate

Seek medical advice

If you have any symptoms of an STI or NSU, such as pain or unusual discharge, see your GP or visit a genitourinary medicine (GUM) clinic (also known as sexual health clinics) as soon as possible.

Many infections are easily treated, for example:

  • with medications, such as antibiotics or antifungal creams
  • by using simple self-care measures, such as more frequent washing

If the skin of your penis is irritated, avoid anything you’re allergic to, such as particular brands of soap. 

Read the answers to more questions about penis health.

Further information:

 

The Tokkels: preventing STIs

A condom is the most effective method of preventing sexually transmitted infections (STIs) such as chlamydia, gonorrhoea and HIV. Watch how this Tokkel learns a simple lesson about preventing STIs.

Media last reviewed: 23/05/2012

Next review due: 23/05/2014

Page last reviewed: 21/08/2012

Next review due: 20/08/2014