Alopecia X is a skin condition in dogs that can go by many names, including black skin disease, hair cycle arrest or coat funk. Unfortunately, the causes of alopecia X in dogs are currently unknown, according to Mar Vista Animal Medical Center in Los Angeles.
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Identification
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Canine alopecia X causes abnormal shedding, changes in fur color, dry fur, gradual symmetrical hair loss on either side of the body and blackened skin in the areas of hair loss.
Breeds at Risk
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Alopecia X affects certain breeds more than others, including spitz or Nordic breeds, such as Alaskan malamutes, Pomeranians, Chow Chows and American Eskimos.
Diagnosis
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Since there are no known causes of alopecia X, the veterinarian will run several tests, including blood tests, a urinalysis, a thyroid test and a skin biopsy to rule out other potential causes.
Treatment
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Treatment may be difficult simply because there is no known cause. However, neutering an intact pet may cure alopecia X if there is a sex hormone imbalance. Also, oral medications such as melatonin--in the form of a nutritional supplement--has been found to regrow hair in some dogs with alopecia X.
Prognosis
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Alopecia X is not harmful or life threatening. Affected dogs live long and happy lives even without treatment. Owners who decide to treat their dogs should understand that many animals redevelop alopecia X, even with successful treatment.
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