Anorexia nervosa is a serious eating disorder characterized by a significantly low body weight, an intense fear of gaining weight, and a distorted perception of one's body shape and size. Body Mass Index (BMI) is a common tool used to assess weight status, but it should not be the sole indicator for diagnosing anorexia or any other eating disorder.
The BMI of a teen with anorexia can vary widely, as it depends on various factors such as age, height, and individual body composition. In general, a low BMI is often associated with anorexia, but a specific BMI threshold does not define the disorder. Other signs and symptoms, along with a professional evaluation, are necessary for a proper diagnosis.
If you suspect that someone you know might be struggling with an eating disorder, it is essential to encourage them to seek professional help from a doctor, psychologist, or other healthcare professionals experienced in treating eating disorders. Early intervention and proper treatment are crucial for the recovery process.