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Coeliac disease

Find out about coeliac disease, an autoimmune disease affecting the digestive system that makes a person have an adverse reaction to gluten.

About this information

This NHS content is written for people in England. Services, entitlements and contact routes may differ in other countries.

Symptoms of coeliac disease

Eating foods that contain gluten can trigger a range of gut symptoms, such as:

Coeliac disease can also cause more general symptoms, including:

Children with coeliac disease may not grow at the expected rate and may have delayed puberty.

What causes coeliac disease?

Coeliac disease is an autoimmune condition. This is where the immune system (the body's defence against infection) mistakenly attacks healthy tissue.

In coeliac disease, the immune system mistakes substances found inside gluten as a threat to the body and attacks them.

This damages the surface of the small bowel (intestines), disrupting the body's ability to take in nutrients from food.

It's not entirely clear what causes the immune system to act this way, but a combination of genetics and the environment appear to play a part.

Treating coeliac disease

There's no cure for coeliac disease, but following a gluten-free diet should help control symptoms and prevent the long-term complications of the condition.

Even if you have mild symptoms, changing your diet is still recommended because continuing to eat gluten can lead to serious complications. This may also be the case if tests show that you have some degree of coeliac disease even if you do not have noticeable symptoms.

It's important to ensure that your gluten-free diet is healthy and balanced.

An increase in the range of available gluten-free foods in recent years has made it possible to eat both a healthy and varied gluten-free diet.

Coeliac disease

Symptoms

Coeliac disease

Medical treatments

Coeliac disease

Causes

Symptoms of coeliac disease include diarrhoea, stomach aches and bloating.

Coeliac disease is treated with a gluten-free diet.

Coeliac disease is caused by the immune system attacking and damaging your gut when you eat food containing gluten.

Content supplied by the NHS website

Content supplied by the NHS website, refreshed 19 August 2026. View the original NHS article ↗

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