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Gastroenteritis (stomach pain)
- 0-1 Years
- 1-5 Years
- 5-11 Years
- 11-19 Years
- SEND
- Parents and Carers
- Common illnesses
Stomach pain is very common in children but can be worrying. Most children will not need any specific treatment and the pain will get better by itself.
Explore the topics on this page:
Symptoms of stomach pain
The main symptoms of gastroenteritis include:
- sudden, watery diarrhoea
- feeling sick
- vomiting
- a mild fever
Some people may also experience other symptoms, such as:
- a loss of appetite
- an upset stomach
- aching limbs
- headaches
Causes of stomach pain
Stomach pain can be caused by:
- constipation
- a urine (wee) infection
- a stomach bug
- reflux or colic in babies
Sometimes there is no cause and the pain goes away by itself.
In older children stomach pain might also be caused by:
- period pains
- anxiety
Sometimes, stomach pain can be caused by something more serious, such as appendicitis or a twist in the testicles of boys known as testicular torsion.
More about stomach pain
If your child has stomach pain there are a few things you can do to below to help them:
- Offer your child a normal diet and plenty of fluids. Avoid fizzy drinks and fruit juices.
- Give them pain relief such as paracetamol (calpol) and or ibuprofen. Always read the labels on the bottle, and never give more than the recommended dose for age.
- Offer your child bland foods.
- Let them lie down and relax for a period of time.
- Encourage them to go to the toilet to do a poo or pass some wind.
- If your child also has runny poos (diarrhoea), offer small amounts of fluid often to try and avoid them getting dehydrated.
If their pain is not controlled with simple pain relief, if they develop jaundice (yellow skin or eyes), have a swollen stomach, are weeing more or less than usual or have blood in their poo or wee, you should arrange for them to be seen urgently by a medical practitioner. Call your GP surgery or NHS 111.
The duration of your child’s symptoms will depend on the cause of their stomach pain.
- If they are constipated, their pain may improve once they have had a poo.
- If they have gastroenteritis, it may last a couple of days.
Call your GP or 111 for advice if your child:
- Has a swollen stomach
- Has blood in their poo or wee
- Has constant pain for more than 1 day despite pain killers
- Has a fever or symptoms continuing for more than 5 days
- Is increasingly thirsty or is weeing significantly more or less than normal
- Has yellow skin or eyes
- Has weight loss/ poor growth
Go to the nearest A&E Department or phone 999 if your child:
- Is pale and floppy
- Has cold hands and feet
- Is drowsy or difficult to wake
- Has green or blood stained vomit
- Has severe pain despite pain relief such as paracetamol or ibuprofen
- Has testicular pain or testicular swelling
How to tell if your baby is in pain
Last reviewed: 27 May, 2026
