Some physical changes may lead us to suspect that there is an eating disorder.

• Rapid weight loss without a known cause.
• Delay in normal growth for age and weight.
• Sudden weight changes.
• Menstrual disorders, loss of menstruation without medical reason.
• Bone decalcification (osteoporosis).
• Hirsutism or lanugo (fine hair, like in babies, in areas where there was none before, and loss in the genital area).
• Swollen cheeks from self-induced vomiting (parotid hypertrophy).
• Dental abnormalities (loss of enamel layer, cavities).
• Calluses on the knuckles of some fingers.