However they are mostly easy to train and get along well with other animals. This is a very popular breed. Beware of poorly bred puppy-mill Cockers as they may have bizarre temperamental changes and behavioral problems. This would include shy-sharpness, which is a combination of fear and dominance that can cause viciousness. Dogs larger than these limits are disqualified from shows.
Some major concerns are cataracts, glaucoma and patellar luxation.
Some minor concerns are hip dysplasia, ectropion, entropion, PRA, allergies, seborrhea, lip fold pyoderma, otitis externa, liver disease, urolithiasis, prolapse of nictitans gland, CHF, phosphofructokinase deficiency, and cardiomyopathy. Occasionally seen are gastric torsion and elbow dysplasia. Living Conditions Cockers will do okay in an apartment if they are adequately exercised, and are fairly active indoors. A small yard is sufficient. Exercise American Cockers have plenty of stamina and need regular exercise.