American Cocker Spaniels are susceptible to a variety of illnesses, particularly infections affecting their ears and, in some cases, their eyes. Although the number or percent of afflicted dogs is not known, progressive retinal atrophy (PRA), glaucoma, and cataracts have been identified in some members of the breed. The American Spaniel Club recommends annual eye exams by a veterinary ophthalmologist for all dogs that are to be used for breeding. Autoimmune problems in Cockers have also been identified in an unknown number or percent of the breed, including autoimmune hemolytic anemia (AIHA). Ear inflammations are common in drop-eared breeds of dog, including the American Cocker, and luxating patellas and hip dysplasia have been identified in some members of the breed.