Lack of Hair Growth in Dogs

Overview of Lack of Hair Growth in Dogs

The patterns of hair growth vary with species and anatomic location on the body. For some animals, seasonal alterations are noted. In dogs and cats, a mosaic exists and coordinated shedding cycles occur.

Lack of hair growth in dogs is different from hair loss, commonly referred to as alopecia. Go to this article on Hair Loss in Dogs for more information.

In some dog breeds the active or growing part of the hair cycle is prolonged, as in Yorkshire terriers, like it is in people. These breeds are more sensitive to drug therapy, like chemotherapy, that interfere with the hair cycle, and they develop alopecia as an adverse effect.

Numerous factors affect hair growth in dogs. They include:

Diagnosis of Lack of Hair Growth

If your dog has been clipped and the hair is failing to grow back, it may be due to a hormonal deficiency or imbalance. In order to diagnose this, blood samples are necessary to measure concentrations of various hormones.

If your dog is losing hair in spots then it may have a bacterial infection or ringworm or mange. Your veterinarian may need to do skin scrapings or pluck hairs for cultures.

Treatment of Lack of Hair Growth

Therapy of lack of hair growth will depend on the underlying cause.

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