Hair growth in dogs is cyclical in nature. Unlike our own hair, dog hair grows and then rests before shedding. Some medical conditions alter this pattern, slowing or even stopping a dog's normal hair growth.
-
Identification
-
Dr. Rosanna Marsalla writes on veterinary website PetPlace.com that excessive shedding, spotty hair loss or hair that doesn't grow back after clipping are indicators that a health issue is interrupting the hair-growth cycle.
Causes
-
Conditions that hinder normal hair growth include pattern baldness and hypothyroidism, according to the University of Tennessee College of Veterinary Medicine. Nutritional deficiencies and infections also affect hair growth.
Treatment
-
Your vet may collect blood samples and skin scrapings to determine the cause of the dog's inconsistent hair growth. Treatment varies depending on the diagnosis. Dr. Marsalla says a hormonal imbalance, for example, usually requires hormone supplements for the rest of the dog's life. Vets may prescribe oral drugs, medicated shampoos or both to treat infections.
Related Facts
-
According to the "Dog Owner's Home Veterinary Handbook," the growth phase of canine hair lasts an average of 130 days before the resting period. In the Afghan Hound, coat growth takes up to 18 months.
Warning
-
Because inconsistent hair growth is sometimes a symptom of serious hormone-related disorders like hypothyroidism and Cushing's disease, don't wait to contact your vet.
-