Most cases of diarrhoea get betterwithin a week, and you may not need tovisit your GP.
The information below explains what will happen if you need to see your GP.
Read about Traveller's diarrhoea .
To identify what's causing your diarrhoea, your GP may ask you questions about:
Your GP may ask you for a stool sample soit can be analysedfor signs of an infection if you have:
Find out how to collect and store a stool sample .
Your GP may suggest you have some blood tests if they suspectyour diarrhoea is being caused byan underlying health condition.
For example, your blood can be tested for signs of inflammation, which may suggest inflammatory bowel disease .
It can be useful for diagnosing conditions that affect your rectum and bowel.
If you have persistent diarrhoea and your GP is unable to find the cause, they mayrefer you to your local hospital for further investigation.
You may have:
Diarrhoea is where you frequently pass watery or loose poo. Some people may also have other symptoms, depending on the cause.
Read about causes of diarrhoes. Diarrhoea usually occurs when fluid can't be absorbed from the contents of your bowel, or when extra fluid is secreted into your bowel.
Read about diagnosing diarrhoea. Further investigation may be needed if you have persistent or severe diarrhoea.
Read about treating diarrhoea. Diarrhoea usually clears up without treatment after a few days, particularly if it's caused by an infection.
TV producer Clare Gilbert arrived in Mumbai for a two-week backpacking trip and promptly came down with a nasty bout of diarrhoea.