Postclipping alopecia

Overview

With an overall healthy dog and the history of clipping and lack of hair regrowth at the surgical or catheter sites the diagnosis of postclipping alopecia is straightforward. It has historically been suggested that evaluation of blood, urine, and hormone levels, in addition to skin biopsy should be performed in these cases. Although somewhat controversial, if your pet is otherwise healthy the additional testing is likely not necessary. In contrast, if the presence of other skin or systemic abnormalities such as poor haircoat in areas not clipped, changes in energy, thirst, urination, or appetite are noted, then your veterinarian can recommend appropriate laboratory testing based on your pet’s symptoms.

Signs & Symptoms

With an overall healthy dog and the history of clipping and lack of hair regrowth at the surgical or catheter sites the diagnosis of postclipping alopecia is straightforward. It has historically been suggested that evaluation of blood, urine, and hormone levels, in addition to skin biopsy should be performed in these cases. Although somewhat controversial, if your pet is otherwise healthy the additional testing is likely not necessary. In contrast, if the presence of other skin or systemic abnormalities such as poor haircoat in areas not clipped, changes in energy, thirst, urination, or appetite are noted, then your veterinarian can recommend appropriate laboratory testing based on your pet’s symptoms.

Affected Animals

Postclipping alopecia is characterized by lack of hair regrowth after close clipping (surgical procedures, grooming). This disease usually affects Northern breeds such as Siberian Husky, Alaskan Malamute, but can also be seen in Golden retrievers and other breeds. The exact cause of delayed hair regrowth in canines is unknown, but is proposed to be an energy saving mechanism in extremely cold climates, so they do not have to shed and regrow their coat.

Treatment

Often there is some amount of dry skin and scale that accompanies the lack of hair regrowth. Emollient and moisturizing shampoos and topicals may be used to remedy the dry skin. There are many over-the-counter products out there with great claims, which often may be more expensive than a veterinary prescription product, and lack the scientific support. The list of oral or topical therapies to stimulate hair regrowth is extensive and none have shown consistent success in the literature. With time the hair will regrow regardless of the products being used, and the investment in various products will likely be unrewarding.