Patient: Description of condition (onset, main symptoms, hospital visited, etc.): It started in ’96, bulimia, hyperventilation, and has been recurring for many years. There is a history of depression! Sometimes he eats excessively and is full of joy and desire to eat when he sees food, and even rummages around for food, and then regrets eating and vomits. Sometimes this can happen several times a day. Sometimes anorexia, no appetite at all when seeing food. The whole person’s mental state is very poor, pessimistic, negative, low self-esteem, irritable, impulsive, can not be interested in anything, the whole person’s cognition is completely out of line with the society. I have been treated for depression, intermittently. Eating disorder has not improved. Is it a category of mental illness? Guangzhou Brain Hospital Psychiatric Department Yang Qiong: 1, eating disorders: is a group of mental disorders based on abnormal eating behavior, mainly including anorexia nervosa, bulimia nervosa and neurotic vomiting. Anorexia nervosa: is a kind of abnormal eating behavior mostly seen in adolescent females, characterized by deliberate restriction of diet, so that the weight drops to significantly lower than the normal standard, for which excessive exercise, induced vomiting, diarrhea and other methods to reduce weight. Bulimia nervosa is an eating disorder characterized by recurrent and irresistible desire to eat and binge eating behavior. Patients have a fear of gaining weight and often take extreme measures such as inducing vomiting, inducing diarrhea, and fasting to eliminate binge eating that causes weight gain. Neurotic vomiting: A group of mental disorders characterized by spontaneous or intentionally induced recurrent vomiting, with the vomit being something that has just been eaten. Not accompanied by other obvious symptoms, vomiting is often related to psychosocial factors, no basis for organic lesions, there can be fear of gaining weight and losing weight, but no significant weight loss. 2, this group of diseases can be secondary to depression and obsessive-compulsive disorder. 3. As for your case, the following diagnosis can be made initially: ① depression; ② bulimia nervosa. Treatment: It is recommended to continue antidepressant treatment