Anorexia nervosa is characterized by distortion of body image and profound weight loss due to self starvation. So, the patients are easily diagnosed with history and interview. We experienced a patient who had suffered for prolonged vomiting and profound weight loss without definite distorted body image, but had accompanied by autonomic dysfunction. Thus, we report a case with a brief review of literatures. (Korean Journal of Gastrointestinal Motility 1998;4:139-143)