Cystitis can cause problems with peeing and make you feel unwell.
Cystitis in adults can cause:
In adults, cystitis does not usually cause a high temperature (fever).
But if you have a temperature of 38C (100.4F) or above and pain in your lower back or sides, it may be a sign of a kidney infection.
It can be difficult to tell whether a child has cystitis, because the symptoms can be vague and young children cannot easily communicate how they feel.
Possible symptoms of cystitis in young children may include:
Children with cystitis can sometimes also have symptoms usually found in adults, such as pain when peeing, peeing more often than normal and pain in their tummy.
If you're a woman who has had cystitis before, or you have mild symptoms that have lasted less than 3 days, you do not necessarily need to see a GP.
Cystitis is very common in women and mild cases often get better on their own.
Try some self-help measures or speak to a pharmacist if you need any advice about treating cystitis.
But you should see a GP if:
Children and men should always be seen by a GP if they have symptoms of cystitis, as the condition is less common and could be more serious in these groups.
Cystitis is not usually a cause for serious concern, but the symptoms can be similar to several other conditions, so it's important to get a proper diagnosis if you're not sure whether you have it.
You should see a GP if you have long-term or frequent pelvic pain and problems peeing, as you may have a condition called interstitial cystitis.
Find out more about interstitial cystitis
Page last reviewed: Mon Aug 2021 Next review due: Wed Feb 2020