Causes of osteoporosis in men

Endocrine diseases	Connective tissue diseases
Hypogonadism Primary Secondary Delayed puberty Estrogen deficiency Hypercortisolism Hyperthyroidism Hyperparathyroidism Vitamin D deficiency Growth hormone deficiency Diabetes mellitus (type 1 and 2)	Osteogenesis imperfecta Ehlers-Danlos syndrome Marfan syndrome Homocystinuria
Gastrointestinal diseases	Drugs
Malabsorption syndromes (eg, celiac disease, postoperative states) Inflammatory bowel disease Cirrhosis	Alcohol Heparin Glucocorticoids Thyroxine suppressive therapy Antiseizure medications Gonadotropin-releasing hormone analogs Cyclosporine Chemotherapy HIV medications (eg, tenofovir)
Hematologic disorders	Miscellaneous causes
Multiple myeloma Chronic hemolytic anemia Systemic mastocytosis	Eating disorders (eg, anorexia nervosa) Hypercalciuria Immobilization Rheumatoid arthritis Kidney disease Hepatic disease Tobacco

HIV: human immunodeficiency virus.

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