Experiences with
Kidney infectionSymptoms of kidney infection
Symptoms of a kidney infection often come on within a few hours.
You can feel feverish, shivery, sick and have a pain in your back or side.
In addition to feeling unwell like this, you may also have symptoms of a urinary tract infection (UTI) such as cystitis.
These include:
- needing to pee suddenly or more often than usual
- pain or a burning sensation when peeing
- smelly or cloudy pee
- blood in your pee
Treatment of kidney infection
Most kidney infections need prompt treatment with antibiotics to stop the infection damaging the kidneys or spreading to the bloodstream.
You may also need painkillers.
If you're especially vulnerable to the effects of an infection (for example, if you have a long-term health condition or are pregnant), you may be admitted to hospital and treated with antibiotics through a drip.
Most people who are diagnosed and treated promptly with antibiotics feel completely better after about 2 weeks.
People who are older or have underlying conditions may take longer to recover.
Causes of kidney infection
A kidney infection usually happens when bacteria, often a type called E. coli, get into the tube that carries urine out of your body (urethra).
The bacteria travel up to your bladder, causing cystitis, and then up into your kidneys.
E. coli bacteria normally live in your bowel, where they cause no harm.
They can be transferred from your bottom to your genitals during sex or if you're not careful when wiping your bottom after going to the loo.
A kidney infection can sometimes develop without a bladder infection. For example, if you have a problem with your kidney, such as kidney stones, or if you have diabetes or a weakened immune system.
Who's at risk
Kidney infections can happen at any age and are much more common in women.
This is because a woman's urethra is shorter, making it easier for bacteria to reach the kidneys.
Younger women are most at risk because they tend to be more sexually active, and having frequent sex increases the chances of getting a kidney infection.
Preventing kidney infection
The best way to prevent a kidney infection is to keep your bladder and urethra free from bacteria by:
- drinking plenty of fluids (plain water is best)
- going to the loo as soon as you feel the need to, rather than holding it in
- going to the loo after sex
- wiping from front to back after going to the loo
- washing your genitals every day, and before having sex if possible
- treating any constipation – being constipated can increase your chance of developing a UTI
- not using a diaphragm or condoms coated in spermicide if you're prone to getting UTIs – it's thought spermicide can increase your risk of getting a UTI
If you keep getting urine infections, a GP may prescribe you a low dose of antibiotics to take regularly.
This may help to prevent the infection returning or any infection spreading to the kidneys.
SymptomsMedical treatmentsCausesPreventionThe main symptoms of a kidney infection are pain in your back or side, feeling sick, shivering and a high temperature.
Most kidney infections are caused by a bladder infection spreading to your kidneys.
Related links
HealthUnlocked contains information from NHS Digital, licensed under the current version of the Open Government Licence
