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Digestion and liver

Inflammatory bowel disease (IBD)

This is a long-term disorder of the digestive tract in which inflammatory cells build up in the wall of the stomach or intestine, so it becomes less able to digest food and absorb nutrients. The exact cause is not fully understood; an interplay between the immune system, gut bacteria and food is thought to play a part. Because many other digestive problems look much the same, a vet works out what is really going on with tests.

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What it is

The lining of the gut is a barrier that lets nutrients through while holding back bacteria and food particles. The immune system stands guard over this lining. In inflammatory bowel disease, that guard overreacts to things it should tolerate, and inflammatory cells crowd into the gut wall. The lining thickens and becomes leakier, so food is less well digested and absorbed.

The disease is long-lasting and runs in flare-ups, with calmer spells in between. It can begin at any stage of adult life.

Living with it means keeping an eye on your dog's stools, weight and appetite, as changes there show how the gut is coping. Stress or scavenging on walks can set off a flare, and a dog that is unwell may need more trips outside and a quiet place to rest.

Signs you may notice

You may notice long-lasting or recurring diarrhoea, vomiting, a loudly gurgling belly or weight loss. Sometimes there is mucus or fresh blood in the stools, and the appetite comes and goes.

When to see a vet

Book a vet visit if diarrhoea or vomiting keeps coming back or your dog is losing weight. Go the same day if there is a lot of blood in the stools, your dog cannot keep even water down or seems weak and listless.

This is general information, not veterinary advice. For your own dog's health, tests and treatment, see a vet.

More conditions: Digestion and liver