Why does my senior dog have recurring stomach pain, vomiting, and dark diarrhea?

Question

Occasional stomach pain. Pacing and unable to get comfortable. Some panting. Audible stomach digestive sounds. Eventually puking and or diarrhea. Usually yellow and gooey. Dark diarrhea. Tarry. Episodes happen about once a month lasting a day. On a lamb and rice diet. Jack russel. 12 years old. Local vet could not diagnose. Negative fecal and blood. Pet's info: Dog | Jack Russell Terrier | Female | spayed | 12 years old | 20 lbs

Lauren Celestin, DVM · Accepted Answer

Melena (dark, tarry stool) is concerning for bleeding from the digestive tract, specifically from the small intestine. This coupled with the abdominal discomfort, vomiting and diarrhea are all signs that warrant an abdominal ultrasound being preformed. Some possibilities that come to mind are GI ulceration, particularly if Piccolo has been on a non-steroidal anti-inflammatory for sometime; neoplasia or cancer also has to be considered due to Piccolo's age. I think you will have the best chance of getting some answers with ultrasound and potentially more specific blood work. I hope this helps a bit and best of luck to you and Piccolo.

Why does my senior dog have recurring stomach pain, vomiting, and dark diarrhea?

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