Massive Hair Loss in Dogs

Allergies

• Allergies in dogs may stem from many different sources. Food and contact allergies are two of the more commonly seen allergies. Dogs have experienced allergic reactions when exposed to the chemicals found in some carpet deodorizers and dyes. Contact with metals, applied antibiotics and various materials (plastic, wool and rubber) have been reported. Reduced or eliminated exposure to the irritant can be helpful in preventing hair loss. Your veterinarian may also prescribe antihistamines or steroids.

Hypothyroidism

• Dogs can suffer from hypothyroidism resulting in hair loss. Hypothyroidism is the underproduction of thyroid hormones that regulate the metabolism of your dog. If your dog has thyroid levels that are low your veterinarian may prescribe thyroid medication. This is usually a lifetime treatment requiring the monitoring of thyroid levels.

Vitamin A Deficiency

• Other possible reasons for massive hair loss on your dog can be caused by a vitamin deficiency. Vitamin A responsive dermatosis can result in hair being easily pulled out. Requiring a lifetime treatment of Vitamin A, this condition is most prominent in cocker spaniels. Lack of vitamin B, copper and zinc deficiencies can also result in massive hair loss in your dog.

Fleas

• Massive hair loss in your dog may also be caused by a hypersensitivity to flea bites. Also known as flea allergy dermatitis, this condition is your dog's reaction to flea saliva. Excessive itching can result in hair loss. Antihistamines and steroids are often prescribed. It is important that the control of fleas is maintained in both your dog's environment including your dog.

Treatments

• Treatments for the prevention of hair loss in your dog will vary per diagnosis.
  Be sure to consult with your veterinarian before making any diagnosis or beginning any treatments.