Diagnostic tools exist to help determine if a person has anorexia, and aid in determining a treatment plan.
Eating and feeding disorders often exist alongside other mental health disorders.
Anorexia diagnostic tools also focused in the past specifically on weight loss.

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Does Anorexia Always Mean Being Underweight?
Urinalysisalso looks at the color and appearance of the urine, its microscopic appearance, and its chemistry.
Other Tests and Procedures
A bone density test may be administered to check forosteoporosis.
X-raysmay be taken to check things like stress fractures or broken bones, lung or heart problems.
The SCOFF Questionnaire for Eating Disorders in Adults
One point is given for every yes answer.
This study recommends the use of testing forfree T3levels in addition to the existing criteria.
Once the condition has been recognized, there are ways to help, and recovery is possible.
Walden Behavioral Care.Anorexia diagnosis.
Peterson K, Fuller R.Anorexia nervosa in adolescents: an overview.Nursing.
National Eating Disorder Information Centre.Anorexia nervosa.
2020;8(1):42. doi:10.1186/s40337-020-00321-4
MedlinePlus.Anorexia.