This mild skin condition occurs in some older females who were spayed as pup- pies. There is gradual loss of hair due to lack of new growth over the undersurface of the belly and around the vulva. Later, it involves the lower chest and neck. The skin becomes soft, smooth, and nearly hairless. Affected females shed very little, do not collect much dirt, and make excellent house pets.
Treatment: This is not a serious disease and can be left untreated. If treatment is desired, estrogen can be given under veterinary supervision. The hormone must be given at least twice a week to affect hair growth.
Note that estrogens may cause bone marrow suppression in dogs. This can be fatal if not recognized in time. Accordingly, all dogs receiving estrogen must be monitored with frequent blood counts.