Читать книгу Animal Behavior for Shelter Veterinarians and Staff - Группа авторов - Страница 144

Mammary gland tumors are the most common neoplasia of female dogs (Moulton 1978; Brodey et al. 1983; Moe 2001; Merlo et al. 2008; Dobson 2013; Sorenmo et al. 2013) and can occur in both intact and spayed bitches. In general, they do not change the behavior of the dog unless the tumor ruptures and drains, in which case it will result in excessive licking or grooming of the area. If the tumor is sufficiently large, it may alter the dog’s gait or the way the dog lies down. Excessive licking of the mammary gland, often a sign of pain and discomfort, may be the first sign noted.