American Cocker Spaniels have an ideal size of 15 inches (38 cm) at the withers for male dogs, with females smaller. The breed standard states that size over 15.5 inches for males and 14.5 inches for females is a disqualification at a breed show, in order to discourage the breeding of oversize dogs. To show, a Cocker Spaniel must be between 25 and 35 pounds, but males usually weigh more than the females.
The American Cocker Spaniel breed standard defines the ideal dog of the breed as having an outgoing, friendly temperament. They tend to be soft dogs who do not do well with rough or harsh training. The breed ranks 20th in Stanley Coren's The Intelligence of Dogs, a rating that indicates good "Working or Obedience Intelligence", or trainability.
Health:
American Cocker Spaniels in UK and USA/Canada surveys had a median lifespan of about 10-11 years, which is on the low end of the typical range for purebred dogs, and 1-2 years less than other breeds of their size. The larger English Cocker Spaniel typically lives about a year longer than the American Cocker Spaniel. In a 2004 UK Kennel Club survey, the most common causes of death were cancer (23%), old age (20%), cardiac (8%), and immune-mediated (8%). In a 2003 USA/Canada Health Survey with a smaller sample size, the leading causes of death were cancer, hepatic disease, and immune-mediated.
American Cocker Spaniels are susceptible to a variety of maladies, particularly infections affecting their ears and, in some cases, their eyes. An unknown percentage of the breed may require medical attention. Although the number or percent of afflicted dogs is not known the following eye conditions have been identified in some members of the breed: Progressive retinal atrophy (PRA), glaucoma, and cataracts. The American Spaniel Club recommends annual eye exams by a veterinary ophthalmologist for all dogs that are bred. 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. Luxating patellas and hip dysplasia have been identified in some American Cocker Spaniels. Puppy buyers should make sure that breeders have checked their sires and dams for these conditions. Dogs free of hip dysplasia can be certified by the Orthopedic Foundation for Animals (OFA).
