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Anemia and Fluid in the Belly in an Older Cocker Spaniel

by Marjo

Reader Question
I have a 12-year-old Cocker Spaniel and I'm very worried. It started 2 to 3 weeks ago with diarrhea. The vet gave him antibiotics and he seemed fine, but then he was constipated for 3 days, and he keeps going back and forth between diarrhea and constipation, with no vomiting. A different vet took blood and found he is anemic. An ultrasound showed fluid in his belly, but the X-rays and ultrasound didn't show any abnormal organ or gas. He is eating just a little and walking, but you can tell he is in pain. The vet tested the fluid, which was dense, and they don't know where it's coming from. The results come tomorrow. Can anyone help?


Answer from Our Team

We're sorry you're going through this. In an older dog, anemia together with fluid in the belly often means bleeding inside the abdomen. A common cause is a mass on the spleen or liver that has bled, and some of these masses are too small or hidden to see clearly on X-rays and ultrasound. Testing the fluid is exactly the right step, because it shows whether the fluid is blood, infection or something else.

Other possibilities include fluid from liver, heart or gut disease, and infection inside the belly. Cocker Spaniels are also prone to immune-mediated hemolytic anemia (IMHA), but IMHA wouldn't explain belly fluid by itself, so your vet will be looking for a cause that ties these findings together.

Pain, a poor appetite and changing bowel habits all deserve prompt care. If he becomes weak, his gums turn pale or white, his belly swells, or he breathes fast, take him to an emergency vet right away.

See anemia in dogs, pale gums in dogs and spleen tumors in dogs.

This is general information, not a diagnosis. Please follow your own vet's advice.

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