Anorexia Nervosa (also known as Anorexia Nervosas, Nervosa, Anorexia): An eating disorder that is characterized by the lack or loss of APPETITE, known as ANOREXIA. Other features include excess fear of becoming OVERWEIGHT; BODY IMAGE disturbance; significant WEIGHT LOSS; and refusal to maintain minimal normal weight.

NIH MeSH · D000856Psychiatry and Psychology

Anorexia Nervosa

Also known asAnorexia Nervosas · Nervosa, Anorexia · Nervosas, Anorexia

Definition

An eating disorder that is characterized by the lack or loss of APPETITE, known as ANOREXIA. Other features include excess fear of becoming OVERWEIGHT; BODY IMAGE disturbance; significant WEIGHT LOSS; and refusal to maintain minimal normal weight.

MeSH classification

  • F03.400.125

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Related concepts

Avoidant Restrictive Food Intake Disorder

An eating or feeding disturbance (e.g., apparent lack of interest in eating or food; avoidance based on the sensory characteristics of food;…

Binge-Eating Disorder

A disorder associated with three or more of the following: eating until feeling uncomfortably full; eating large amounts of food when not ph…

Bulimia Nervosa

An eating disorder that is characterized by a cycle of binge eating (BULIMIA or bingeing) followed by inappropriate acts (purging) to avert …

Common questions about Anorexia Nervosa

What does Anorexia Nervosa mean in medicine?
An eating disorder that is characterized by the lack or loss of APPETITE, known as ANOREXIA. Other features include excess fear of becoming OVERWEIGHT; BODY IMAGE disturbance; significant WEIGHT LOSS; and refusal to maintain minimal normal weight. This definition is taken from the National Library of Medicine's MeSH (Medical Subject Headings) 2026 release, which is the standard vocabulary used to index PubMed and most medical literature.
Is Anorexia Nervosa known by any other names?
Yes. Anorexia Nervosa is also referred to as Anorexia Nervosas, Nervosa, Anorexia, Nervosas, Anorexia in different clinical, research and patient-facing contexts. The MeSH descriptor groups all of these synonyms under a single canonical concept so research and records stay consistent.
Where does Anorexia Nervosa sit in the medical classification?
Anorexia Nervosa falls under the broader medical category "Psychiatry and Psychology" in the MeSH hierarchy (tree numbers: F03.400.125). Browsing the related concepts on this page takes you to neighbouring topics in the same branch of medicine.
Where can I get a plain-language explanation of Anorexia Nervosa?
For a plain-language explanation of Anorexia Nervosa - including symptoms, treatments and what it means for an Indian patient - ask GoDavaii's Health AI. It works in 22+ Indian languages, is free and needs no signup. Tap "Ask GoDavaii AI about Anorexia Nervosa" above.

Source: NIH MeSH 2026 (D000856) — National Library of Medicine, public domain. View official MeSH record ↗