Alopecia (Hair loss) in Dogs

Overview of Canine Hair Loss

Alopecia is the complete or partial lack of hair in any area of the skin where hair would normally be found. In dogs, it may be caused by self-trauma by scratching or chewing, hair follicle diseases that cause the hair to fall out, or the failure of hair to grow after normal loss.

Severe hair loss makes your dog more susceptible to the elements. In addition, some of the diseases that can cause alopecia may also have harmful effects on other organ systems of your dog.

What to Watch For

Diagnosis of Alopecia in Dogs

As with any disease, a complete history is very important. Be prepared to answer questions such as:

Following a complete history, your veterinarian will perform a thorough physical examination of the skin paying special attention to the pattern of alopecia, the appearance of the skin and how easy the hair comes out. A flea comb may be used to look for fleas, flea dirt or other parasites.

Diagnostic tests that may be needed to determine the cause of the alopecia include:

Treatment of Alopecia in Dogs

There is no specific treatment for alopecia. Instead, treatment is aimed at eliminating the underlying cause of the problem.

Home Care and Prevention

Dogs with alopecia need to be kept groomed and free of fleas. If the hair loss is significant, some dogs may need to wear a sweater in the winter to protect them from cold weather. In the summer, sunburn may be a concern. If fleas are a problem, consult your veterinarian to discuss a comprehensive flea control program.

In-depth Information on Canine Alopecia

Nearly all diseases of the skin have the potential to cause alopecia. It is important to remember that it is normal to lose hair. Hair follicles are continually losing and developing new hairs. Alopecia can be separated into pruritic (itchy skin diseases) and non-pruritic.

Pruritic Causes of Alopecia

Non-pruritic Causes of Alopecia

Diagnosis In-depth

Treatment In-depth

The only way to successfully treat alopecia in dogs is to identify and treat the underlying cause. There are no symptomatic treatments.

Follow-up Care for Dogs with Hair Loss

Since there are so many different causes of alopecia, follow-up by the owner and communication with the veterinarian is critical. Administer all medications as instructed. Keep your dog’s coat clean and properly groomed. Observe closely for fleas. Flea infestation always makes alopecia worse.

Alopecia is the complete or partial lack of hair in any area of the skin where hair would normally be found. In dogs, it may be caused by self-trauma, hair follicle diseases or the failure of hair to grow after normal loss.