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Why is my puppy scratching and biting himself, causing skin cuts?

Updated On September 23rd, 2025

Pet's info: Dog | Akita | Male | unneutered | 3 months and 15 days old | 27 lbs

My 14 weeks old puppy keeps scratching and small biting himself everywhere and is starting to have cuts wherever he scratches or bites. There is a cut on each arm and was a cut on shoulder and arm pit but now is gone. Would love some direction as what to do next.

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1 Answer

Most Helpful Answer

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Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on July 30th, 2020

Thank you for contacting Petco Pet Education Center, formerly Petcoach with your question about Odin and for providing pictures, they are very helpful. Poor boy! This scratching can be caused by fleas, mites, ringworm, or allergies. If he isn't up to date on his flea treatment, I can give you one for him. First, I would give him Capstar. It's a one time pill that starts killing fleas within 30 minutes. Then follow up with a spot on treatment, such as Advantage or Revolution. This is a treatment that has to be used once a month. You will also have to disinfect the environment. Wash his bedding in hot soapy water, and vacuum the furniture and carpet surfaces. You can use a spray to kill fleas in the house, such as Indorex, or a flea bomb would work well to kill the fleas in the home. If he is up to date on his flea treatment, I recommend taking him into the vet for an exam today or tomorrow. The vet can do blood tests, skin scrapings, and use a Wood's lamp to diagnose allergies, mites, and ringworm. Once the cause of the itching is found, the vet can prescribe the appropriate treatment. I hope this helps!

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