Hip dysplasia was diagnosed in three cats. Two were presented with a h
istory of hindlimb lameness and the other had a history of constipatio
n. All were confined for two weeks and showed considerable clinical im
provement. At follow-up examination the cats were free of clinical sig
ns despite the deterioration in the radiological appearance of their h
ips. Luxation or subluxation of the hips, insufficient development of
the craniolateral acetabular edges, loss of the arched shape of the cr
anial subchondral acetabular bones, shallow acetabula and secondary de
generative changes on the femoral heads and necks were the main radiol
ogical findings in the affected cats.