Petco Text Logo
Petco Pet Logo
  • Two Easy Ways to Start Earning Rewards!

    rewards header
    Become a member today!
    Members-only pricing and offers, personalized care notifications, Vital Care points back on every purchase and more!
    Petco Pay LogoBecome a credit card member today!

    Earn 2X Pals Rewards points at Petco
    when you use Petco Pay!

    APPLY NOW
    Learn More About Petco Pay Benefits

Why is my cat's belly hair thinning and losing hair on her tail?

Updated on September 23rd, 2025

Pet's info: Cat | American Shorthair | Female | spayed | 8 years and 3 months old | 12 lbs

My 8-year old black American Shorthair female cat, Ruby, has some hair thinning (not hair loss) on her belly. Doesn't look red - no spots/scratches/excessive licking, just a large area where the hair looks like it's thinned out quite a bit. Don't know if this is normal or if we're just noticing it more on her, because she's a black cat. She also has a bit of hair loss on the underside of her tail and her back legs. No change in eating/drinking/pooping/peeing. Still affectionate and playful.

1 Answer

Most Helpful Answer

Dr. Elizabeth

Answered By Dr. Elizabeth

Veterinarian

Published on November 2nd, 2017

Without a photo, its hard to say whats happening with Ruby. If the skin looks totally normal (no redness, flakey skin, scabs...etc) then its possible Ruby is simply over grooming. Some cats with lick their fur until it thins out as a habit (like people biting their nails). Hairloss in general can indicate many things: parasites, fungal infections, thyroid conditions, metabolic imbalances. When in doubt, I recommend a trip to the vet to have her thoroughly checked out. Hope you get it figured out soon!
Vote Icon1Pet Parents found this answer helpful

Smart Picks for Smart Questions

Have A Vet Question?

Book an appointment with the pros – our expert vets are here to help.

Share

Styled arrow button