Complication type	Anorexia nervosa	Bulimia nervosa
Cardiovascular	Arrhythmias Bradycardia Conduction defects (e.g., QTc prolongation) ECG abnormalities (e.g., low voltage, T-wave inversions, ST-segment depression) Hypotension Mitral valve prolapse Peripheral edema Sudden death	Arrhythmias Diet pill toxicity (e.g., palpitations, hypertension) Emetine cardiomyopathy (ipecac syrup) Mitral valve prolapse Peripheral edema
Dermatologic	Carotenosis Dry skin, brittle nails Lanugo Starvation-associated pruritus	Russell's sign (i.e., calluses on dorsum of hand from purging)
Endocrine	Amenorrhea Hypercholesterolemia Hypercortisolemia Hypoglycemia Impaired temperature regulation Infertility Neurogenic diabetes insipidus Osteopenia/osteoporosis Thyroid abnormalities	Amenorrhea Hypoglycemia Irregular menses Mineralocorticoid excess Osteopenia
Gastrointestinal	Abnormal liver function tests Acute gastric dilation from refeeding Bloating/fullness Constipation Delayed gastric emptying Refeeding pancreatitis Slowed gastrointestinal motility	Acute gastric dilation Cathartic colon Constipation from laxative abuse Dental erosion Esophageal rupture Esophagitis Gastroesophageal reflux Mallory-Weiss syndrome Parotid gland swelling Post-binge pancreatitis
Hematologic	Anemia (normocytic, normochromic) Decreased erythrocyte sedimentation rate Mild leukopenia with relative lymphocytosis Thrombocytopenia	None commonly associated
Metabolic	Dehydration Electrolyte imbalance Increased serum carotene Refeeding syndrome	Dehydration Electrolyte imbalance
Neurologic	Cognitive impairment Pseudoatrophy (i.e., enlarged cerebral ventricles and external cerebrospinal fluid spaces) Seizures	Cognitive impairment Cortical atrophy, ventricular enlargement Peripheral neuropathy
Pulmonary/mediastinal	Decreased pulmonary capacity	Aspiration pneumonitis Pneumomediastinum precipitated by vomiting Pneumothorax or rib fractures
Renal	Increased blood urea nitrogen concentration Renal stones	Increased blood urea nitrogen concentration Renal stones