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My dog is aggressive, foams at mouth, shakes. Rabies or anxiety?

Updated on September 23rd, 2025

Pet's info: Dog | Mixed Breed Large (61lb +) | Male | neutered | 2 years and 1 month old | 65 lbs

Hello, I have a pitbull mixed with a Labrador. He acts aggressive towards animals and people. He experiences foam in his mouth. At night, he often shakes. He is scared of anything that moves. It could be as simple as a water bottle. I was reading about rabies and I was wondering if these symptoms could be a sign of rabies?

1 Answer

Most Helpful Answer

Jennifer Summerfield, DVM CPDT-KA

Answered By Jennifer Summerfield, DVM CPDT-KA

Veterinarian, Certified Dog Trainer

Published on May 23rd, 2017

Animals with rabies typically become progressively worse with other neurologic symptoms (such as muscle tremors and seizures), and die within a few days of beginning to show symptoms. So if this behavior has been going on for longer than that, it isn't rabies - instead, it's likely to be a behavior issue.

From your description, it sounds like Max is very anxious and fearful. Many fearful dogs are also aggressive towards other animals and people. If you want to work on this problem, I would recommend making an appointment with a veterinary behaviorist who can evaluate him in person and help you put together a detailed treatment plan for his aggression and anxiety issues. This might include medication, as well as management suggestions to help him avoid situations that make him afraid, and specific training exercises you can work on to help with this behavior.

You can search for a board-certified veterinary behaviorist in your area here: www.dacvb.org
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