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HomeConditionsEating Disorders & Body ImageAnorexia Nervosa
Mental Health Condition

Anorexia Nervosa

Overview

Description

Anorexia Nervosa (AN) is an eating disorder characterized by restriction of energy intake leading to significantly low body weight, intense fear of gaining weight or persistent behavior that interferes with weight gain, and disturbance in the way one’s body weight or shape is experienced, with undue influence of body shape/weight on self-evaluation or persistent lack of recognition of the seriousness of low body weight.

Prevalence

Point prevalence ~0.3–1% in females and lower in males; onset commonly in early to mid-adolescence, but can occur across the lifespan.

Age of Onset

Typically 12–18 years; risk peaks around puberty/adolescence.

DSM-5 Code

307.1

ICD-10 Code

F50.01/F50.02

Reviewed by the HeyPsych Medical Review Board
Board-certified psychiatrists and mental health professionals
Medical Review Board
Published: August 15, 2025
Last Updated: January 9, 2026
Last Reviewed: January 9, 2026

Diagnostic Criteria

Symptoms

Prognosis

Evaluation

Specifiers

Neurobiology

Risk Factors

Comorbidities

Warning Signs

Impact On Life

Severity Levels

Treatment Goals

Prognosis Factors

When To Seek Help

Real Life Examples

Developmental Stages

Self Help Strategies

Treatment Approaches

Overdiagnosis Factors

Missed Diagnosis Factors

This information about mental health conditions is for educational purposes only. If you believe you may be experiencing symptoms of a mental health condition, please consult with a qualified healthcare professional for proper evaluation and diagnosis.

Seeking Help for Anorexia Nervosa?

If you recognize these symptoms in yourself or a loved one, know that help is available. Mental health conditions are treatable with options like Cognitive Behavioral Therapy, and early intervention can make a significant difference.
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