What it is
The gut lining is meant to let nutrients in, not let the blood's proteins out. When it is inflamed, or when the tiny lymph vessels in the gut wall are blocked or swollen, protein seeps into the intestine faster than the body can replace it. One of these proteins, albumin, works like a sponge that holds fluid inside the blood vessels, so as it drops, fluid leaks into the belly, the chest or under the skin.
It is a consequence, not a disease of its own: long-term gut inflammation, problems with the gut's lymph vessels, infections or growths in the intestine can all lead to it.
A dog with this condition may look thin while the belly grows round, tire sooner, and breathe harder if fluid collects in the chest. Day to day they need more rest, and you will want to keep a close eye on weight, appetite and droppings, since small changes can mean the condition is shifting. Regular check-ups become part of the routine.
Signs you may notice
- Long-lasting or recurring diarrhoea
- Losing weight despite eating
- Swollen, rounded belly
- Swelling of the legs
- Tiring quickly
- Breathing harder than before
You may notice long-lasting or recurring diarrhoea, weight loss even though the dog is eating, vomiting or listlessness. Some dogs develop a swollen belly or swollen legs.
When to see a vet
Book a visit if diarrhoea lasts more than a few days or keeps coming back, or if your dog loses weight. If the belly swells or the dog is struggling to breathe, a vet is needed immediately.
This is general information, not veterinary advice. For your own dog's health, tests and treatment, see a vet.