Most cases of pancreatitis in dogs and cats are idiopathic. However, several risk factors have been identified. Miniature Schnauzers have been reported to be dramatically overrepresented in some studies, and it has been speculated that they may have a genetic predisposition similar to that in families of human patients with hereditary pancreatitis. Other studies have reported an increased prevalence in Yorkshire Terriers, Cocker Spaniels, Dachshunds, Poodles, sled dogs, or other breeds.