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Why is my 12-year-old dog losing back hair and has bloodshot eyes?

Updated On September 23rd, 2025

12 year old long haired chiahua UA is loosing his hair down middle of his back it doesn't itch and his eyes are so bloodshot I paid vet 300 and they gave him pain med

1 Answer

Most Helpful Answer

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Answered By Dr. Elizabeth

Veterinarian

Published on May 25th, 2019

Your pup's hair loss could be several things including allergies, endocrine disease, parasites, hormonal changes, poor diet or the normal twice yearly shedding of the coat. The only way to figure out the cause is to have him examined by your veterinarian who may need to run some diagnostics to start figuring out whats wrong. You can rule out parasites by using an oral medication like Simparica. There are a couple things you can do at home and they can help but they may not address the underlying cause. You can try adding in an omega 3 fatty acid supplement for dogs, this can help improve the skin health. You may also try changing his diet to something like Royal Canin or Nutro as they are aimed at skin health. Eyes can be red for many reasons including an injury to the cornea, an infection, dry eye, uveitis, allergies or glaucoma. I recommend to have him examined again by the veterinarian. It's possible the doctor has already completed some of the tests. Be sure to have a discussion about the most probable causes and what needs to be done to test for them. Best of luck and please feel free to post any additional questions.

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