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Why is my female dog losing her fur in cycles and never had a heat?

Updated On September 23rd, 2025

Pet's info: Dog | Shih Tzu | Female | 4 years and 3 months old | 15 lbs

My dog is 5 years old female and she never had a period about every 6 mths she drop her fur and ends up with bald patches then she grown so it back it's like a cycle she is a shiz Shue

1 Answer

Most Helpful Answer

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Answered By Christie Long, DVM

Veterinarian, Certified Veterinary Acupuncturist

Published on November 13th, 2016

Certainly it's odd for an intact female to never have a heat cycle. With the hair loss issues, I'm concerned about a possible hormonal disease. Discuss this with Rosie's vet at her next appointment, and consider blood work that will help to diagnose a hormonal condition like hypothyroidism and Cushing's disease.

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