Cystitis is an inflammation of the bladder, usually caused by a bacterial bladder infection.

Male Cystitis is not usually serious if treated quickly, but it can be very painful. Men who have unprotected anal sex are slightly more at risk of Cystitis. It can be more serious in men because it could be caused by:

  • an underlying bladder, kidney or prostate infection, such as prostatitis
  • an obstruction in the urinary tract, such as a tumour or an enlarged prostate (the gland located between the penis and the bladder)
  • diabetes.

What causes it?

If bacteria reach the bladder, they can multiply and irritate the bladder lining, leading to the symptoms of Cystitis.

Bladder infections can be caused by:

  • not emptying your bladder properly – for example, because of pregnancy or an enlarged prostate
  • damage or irritation around the urethra (the tube that carries urine from the bladder), which could be caused by sex
  • bacteria being transferred from the anus to the urethra – for example, during sex.


The symptoms of Cystitis can also be caused by other conditions, so it's important to see a sexual health clinician or your GP the first time you have any of these symptoms.

  • a need to urinate urgently and often but only passing a small amount
  • pain or stinging when you urinate
  • pain in the bladder
  • urine that's dark, cloudy or strong smelling
  • traces of blood in your urine
  • pain low in your belly (directly above the pubic bone), or in the lower back or abdomen
  • feeling unwell, weak or feverish.

You can sometimes have Cystitis but have no symptoms. This is particularly common if you’re older.

Long term effects

Although most men will not experience any long term effects, some will experience recurring Cystitis and it can progress to the kidneys if left untreated and become pyelonephritis (kidney infection). This can be serious but can be treated with antibiotics.


Mild Cystitis usually clears up within a few days if you drink plenty of water and avoid having sex until your symptoms have cleared up. You can take paracetamol or ibuprofen for pain relief.

If your symptoms are severe, you may be prescribed a short course of antibiotics.

Telling your partner

Although you can’t pass on Cystitis, you may wish to tell your partner if you are experiencing discomfort that means you don’t want to have sex. If sex is triggering your Cystitis, you may find it helpful to talk to your partner about how you feel and what you can do to reduce the risk of infection. Recurring Cystitis can lead to anxiety about sex and can impact your sexual relationships.

How to avoid or improve Cystitis

There are many ways to reduce the chances of infection:

  • after having sex, empty your bladder as soon as possible to get rid of unwanted bacteria
  • don't use perfumed bubble bath, soap, or talcum powder around your genitals
  • have a shower, rather than a bath to lessen exposure to chemicals in your cleaning products
  • always empty your bladder fully when you go to the toilet
  • don't wait to go if you need to urinate – delaying it can place extra stress on your bladder and make it more vulnerable to infection.

There is conflicting evidence about whether cranberry juice has any effect on bladder infections.

Where to get tested

Men who have Cystitis symptoms you should always visit a sexual health clinic or see their GP as it could be sign of a more serious condition.

Your sexual health clinician should be able to diagnose Cystitis from asking about your symptoms. In some cases, they may ask you to provide a urine sample to identify any bacteria.


Prostatitis is the inflammation (swelling) of the prostate gland. It can be very painful and distressing, but will usually get better over time.

The prostate is a small gland found in men that lies between the penis and the bladder. It produces a thick white fluid that's mixed with sperm to create semen.

Prostatitis can develop in men of all ages.

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No, Cystitis does not affect fertility in men or women.

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No, a UTI is not sexually transmitted, but it could be a sign that an STI is present. It is always good to have an STI screen to make sure that it is not a sign of an STI.

Sex can sometime cause a UTI.

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