This disorder occurs in infants and is rare in children and adolescents. Onset of rumination disorder usually occurs after three months of age. It is associated with medical conditions such as hiatal hernia . The cause is often unknown. Laboratory tests such as serum electrolytes , endocrinological function and a hematological workup can measures the severity of rumination on the body.
Rumination disorder is treated with behavioral techniques such as mild aversive training.
Other techniques include improvement in the child's psychosocial environment and psychotherapy for the parents. In other cases, treatment is necessary. Complications of rumination include malnutrition , lowered resistance to disease, and failure to thrive . The information provided herein should not be used for diagnosis or treatment of any medical condition. A licensed physician should be consulted for diagnosis and treatment of any and all medical conditions.