Many clients , and even clinicians, erroneously believe that vomiting is "normal" in cats, when this is not the case. Distinguishing whether a feline patient is vomiting or regurgitating is important, as it allows the clinician to organize a differentials list that is thoughtful, rational and has a high degree of success in delineating the underlying pathology. This presentation will provide an overview of the pathophysiology of vomiting and regurgitation, will discuss common and uncommon differentials for each, and will discuss further diagnostics and targeted treatments.