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My pet rat has hair loss and itching. Is it parasites or dermatitis?

Updated On September 23rd, 2025

Pet's info: Small Animal | Rat | Male | unneutered | 1 month and 29 days old | 1lb

Hi I have a pet rat and he’s experiencing hair loss. His brother, who recently passed away, also had thinning hair (they were from the same litter). I checked for lice and kites but I can’t find any. He eats well, low protein dog food, also fruits and vegetables. He itches a lot as well, could it be dermatitis?

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1 Answer

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Answered By Dr Stafford, BVetMed, MRCVS

Veterinarian

Published on January 30th, 2020

In such a young rat the most common reason for hair loss is parasites, I would trear him for them anyway as they can be hard to see. If that doesnt help then I would consider allergy, dust free bedfing can help and good quality pellet food specifically formulated for rats.

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