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Intense fear of gaining weight or of becoming fat, or persistent behavior that interferes with weight gain, even though at a significantly low weight. Anorexia nervosa, commonly referred to as anorexia, is an eating disorder characterized by low body weight, a distortion of the perception of body image, and an obsessive fear of gaining weight. If you or a loved one seem to be at risk of developing the disorder, get treatment right away. [1] Patients with acute anorexia nervosa can suffer from either the restricting subtype of anorexia (AN-R) or the binge-purge subtype (AN-BP). However, you may be hospitalized if you have serious health complications. A study found that approximately one-third of patients hospitalized for anorexia nervosa reported excessive (i.e., obligatory, obsessive, or driven) exercise during the three months before admission.15. A dietitian can help select nutritious and calorie-rich foods. This study seeks to define the frequency of medical complications in this group of patients in order to help inform the care of individuals < 65% ideal body weight who seek treatment for their extreme eating disorders. FOIA Approximately 95% of persons with an eating disorder are 12 to 25 years of age. The criteria for hospitalization for anorexia nervosa usually occur later in the progression of the disorder. C. Disturbance in the way in which one's body weight or shape is experienced, undue influence of body weight or shape on self-evaluation, or persistent lack of recognition of the seriousness of the current low body weight. Some other reasons for hospitalization due to anorexia can include; the need for testing and diagnosis, weight loss that has exceeded 25 percent of a persons total body weight within three months, severe dehydration, infection of any kind, low heart rate, anemia, low body temperature, vomiting up blood, and low potassium levels. Although 90% of patients with an eating disorder are female, the incidence of diagnosed eating disorders in males appears to be increasing.5, The etiology of eating disorders is unknown and probably multifactorial. The ranges below are derived from World Health Organization categories for thinness in adults; for children and adolescents, corresponding BMI percentiles should be used. A person viewing it online may make one printout of the material and may use that printout only for his or her personal, non-commercial reference. Laxative abuse causes hemorrhoids and rectal prolapse. An episode of binge eating is characterized by both of the following: 1. Bulimia nervosa involves the uncontrolled eating of an abnormally large amount of food in a short period, followed by compensatory behaviors, such as self-induced vomiting, laxative abuse, or excessive exercise. This subreddit is not officially associated with the support group Eating Disorders Anonymous. We enrolled 168 inpatients with AN . Overall rates of anorexia are difficult to pin down because often an individual with one eating disorder will also show signs of another.