
Rumination Disorder
Rumination syndrome is a condition in which someone repeatedly regurgitates undigested or partially digested food from the stomach. The regurgitated food is then chewed again and swallowed or spit out. People with rumination syndrome don't try to regurgitate food. It happens without any effort.
Diagnostic Criteria
A. Repeated regurgitation of food over a period of at least 1 month. Regurgitated food may be re-chewed, re-swallowed, or spit out.
B. The repeated regurgitation is not attributable to an associated gastrointestinal or other medical condition (e.g., gastroesophageal reflux, pyloric stenosis).
C. The eating disturbance does not occur exclusively during the course of anorexia nervosa, bulimia nervosa, binge-eating disorder, or avoidant/restrictive food intake disorder.
D. If the symptoms occur in the context of another mental disorder (e.g., intellectual dis¬ ability [intellectual developmental disorder] or another neurodevelopmental disorder), they are sufficiently severe to warrant additional clinical attention.