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Why is my cat losing hair and getting bald spots after neuter surgery?

Updated on September 23rd, 2025

Pet's info: Cat | Domestic Shorthair | Male | neutered | 1 year old

Our cat has been losing excessive amounts of hair since he was neutered last Tuesday. He was very healthy with thick fur, now he has big bald spots along the side of his neck and under his chin, and his fur seems to be thinning out. I'm very concerned. Could it just be from stress because of the surgery? He is only 9 months old.

1 Answer

Most Helpful Answer

Dr. Dayna, DVM, CVA

Answered By Dr. Dayna, DVM, CVA

Veterinarian, Certified Veterinary Acupuncturist

Published on January 15th, 2018

What you describe certainly is not normal after a minor surgery such as a neuter. However, I am suspicious that he may have a skin infection, ringworm, or even possibly mites. Sometimes if they have a minor infection or mites then the stress of surgery can cause it to get worse. I would highly encourage you to schedule him a follow up appointment with your veterinarian to determine what is causing the skin problem. Best of luck and I hope he improves soon. Thank you for using Pet Coach.
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