Why does my senior pug have diarrhea, fishy breath, and keep licking?
Poor Diego! The diarrhea could be due to a number of causes including dietary indiscretion (eating something he should not have or isn't accustomed to), bacterial imbalance in his GI tract, a parasite, or inflammation of his colon due to stress. The chronic swallowing problem is more concerning for gastroesophageal reflux, a problem with his lower esophagus such as megaesophagus, or even potentially cancer. His bad breath could be due to persistent bacteria in the mouth, a tooth problem, or potentially related to his swallowing trouble. I recommend having Diego evaluated by a veterinarian for these issues. A fecal test would help to determine the cause of his diarrhea and how to treat it. The swallowing problem is something that will require an oral exam and possibly x-rays of his neck and chest or a more advanced swallowing study with contrast material. Or, your vet may recommend some medications if reflux is suspected. I hope this is helpful and you can find some answers!
Updated on September 23rd, 2025