Updated On September 23rd, 2025
Pet's info: Dog | Mixed Breed Large (61lb +) | Male | neutered | 15 years and 9 months old | 75 lbs
My dog has been clearing his throat loudly since last night and he just coughed and a tiny bit of bloody mucous came out. He's also been sleeping a lot since yesterday.
1 Answer
Published on May 21st, 2017
Oh no, poor Marble! It is concerning that he coughed out some blood mucous and while that can be a sign of respiratory infection, in a senior dog I would also be concerned that it could be a sign of cancer. It's best that he is seen by a vet tomorrow for a physical exam, blood tests, urinalysis, and chest x-rays. These tests will help the vet diagnose what is causing his symptoms. Once a diagnosis is reached, the vet can discuss what treatment options are available for Marble.
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