Urine Infection in Pregnancy - Symptoms

Authored by Dr Mary Harding, 24 Mar 2016

Patient is a certified member of
The Information Standard

Reviewed by:
Dr Laurence Knott, 24 Mar 2016

What is a urine infection and what are the symptoms?

A urine infection is caused by germs (bacteria) which get into your urine. Usually the germs have come from your skin, and travelled up the tubes of the urinary system. The symptoms may depend on how far up your system the germs have travelled. The germs may cause:

  • Asymptomatic bacteriuria. In this situation bacteria are found in your urine but are not causing any symptoms. You will only know you have it if your urine is tested.
  • Bladder infection (cystitis). This is common, both in pregnant and non-pregnant women. Typical symptoms are pain when you pass urine and passing urine more often. You may also have other symptoms such as pain in your lower tummy (abdomen), blood in your urine, and a high temperature (fever).
  • Kidney infection (pyelonephritis). This is uncommon but may occur as a complication from cystitis or asymptomatic bacteriuria. It is usually a more serious infection, making you feel very unwell. Some or all of the possible symptoms may occur, which include:
    • Pain in your side (loin) over your kidney.
    • Having a high temperature.
    • Feeling sick (nausea).
    • Being sick (vomiting).
    • Diarrhoea.
    • Blood in your urine.
    • Symptoms of cystitis as above.
    • Feeling generally unwell.

Can a urine infection affect my pregnancy?

If you have a kidney infection when you are pregnant, you can feel very unwell. If left untreated, it may also cause problems such as early labour and/or a small baby. A kidney infection is uncommon but may develop as a complication from a bladder infection (cystitis) or from a urine infection. There may be no symptoms at first (asymptomatic bacteriuria).

Further reading and references

Hi everyone. May I just ask something, I am doing this research about what good and mot good for us who are suffering UTI. Found out that some says grapes, pineapple, apple, lemon are not good. But...

paula82085
Health Tools

Feeling unwell?

Assess your symptoms online with our free symptom checker.

Start symptom checker
Listen