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What causes swollen testicles and excessive thirst in my dog?

Updated On September 23rd, 2025

Pet's info: Dog | Miniature Poodle | Male | unneutered | 12 years and 11 months old | 9 lbs

My dogs testicles are swollen and he is drinking alot of water in the last few says

1 Answer

Most Helpful Answer

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Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on March 12th, 2017

Poor Precious! In a senior dog, I would be concerned that his swollen testicles could be due to testicular cancer. It could also be caused by injury or infection in that area. Drinking a lot of water can be a sign of a medical illness such as diabetes, UTI, Cushing's disease, kidney failure, or bladder stones. If his testicles are quite swollen and are causing him a lot of discomfort, I would have him seen by a vet right away. Otherwise, have him seen by a vet first thing in the morning.

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