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My neutered dog's penis gets hard with a knot. Is it normal?

Updated On September 23rd, 2025

Pet's info: Dog | German Shepherd | Male | neutered | 1 year and 3 months old | 85 lbs

I have a German Shepard that was neutered 8 months ago. about 6 times that I know of his penis gets hard and a knot forms half way down it. If he is laying down he is unable to stand until it goes away. Did the vet miss something?

1 Answer

Most Helpful Answer

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Answered By Ana M, DVM

Veterinarian

Published on September 24th, 2018

Thank you for submitting your question regarding Ruger. This is common in young dogs, even in ones that have been neutered. It typically occurs with excitement in the dog. Most of time it happens less as the dog ages. It is typically not any anything to be concerned with, but you can also alert his veterinarian if you are worried. I hope this information helps!

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