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Dysentery is an infection of the intestines that causes diarrhoea containing blood or mucus.
Other symptoms of dysentery can include:
Dysentery is highly infectious and can be passed on if you don't take the right precautions, such as properly and regularly washing your hands (see below).
This page covers:
There are two main types of dysentery:
As dysentery usually clears up on its own after three to seven days, treatment isn't usually needed.
Over-the-counter painkillers, such as paracetamol, can help relieve pain and a fever. Avoid antidiarrhoeal medications, such as loperamide, because they can make things worse.
You should stay at home until at least 48 hours after the last episode of diarrhoea to reduce the risk of passing the infection on to others.
Handwashing is the most important way to stop the spread of infection. You're infectious to other people while you're ill and have symptoms.
Take the following steps to avoid passing the illness on to others:
As shigella is easily passed on to others, you may need to submit stool (poo) samples to be given the all clear to return to work, school, nursery or a childminder.
The type of shigella you have and whether or not you or others are in a risk group will influence how long you need to stay away.
Risk groups are people in certain occupations – including healthcare workers and people who handle food – as well as people who need help with personal hygiene and very young children. Your environmental health officer will be able to advise you about this.
It's not always necessary to see your GP if you have dysentery because it tends to clear up within a week or so.
However, you should see your GP if your symptoms are severe or they don't start to improve after a few days. Let them know if you've been abroad recently.
If your symptoms are severe or persistent, your GP may prescribe a short course of antibiotics. If you have very severe dysentery, you may need treatment in hospital for a few days.
You can reduce your risk of getting dysentery by:
Read more about food safety and home hygiene.
If you're travelling to a country where there's a high risk of getting dysentery, the advice below can help prevent infection:
Read more about food and water safety abroad.
Bacillary and amoebic dysentery are both highly infectious and can be passed on if the faeces (poo) of an infected person gets into another person's mouth.
This can happen if someone with the infection doesn't wash their hands after going to the toilet and then touches food, surfaces or another person.
In the UK, the infection usually affects groups of people in close contact, such as in families, schools and nurseries.
There's also a chance of picking up the infection through anal or anal-oral sex ("rimming").
In developing countries with poor sanitation, infected faeces may contaminate the water supply or food, particularly cold uncooked food.