Table 1.

Etiologies of Osteoporosis in Men

Social Factors	Chronic Diseases	Endocrinopathies	Malignancies	Genetic Disorders
Low weight	Liver	Hyperthyroidism	Multiple myeloma	Hemophilia
Lack of exercise	Kidneys	Hyperparathyroidism	Lymphoma	Hemochromatosis
Diet low in calcium and vitamin D	Gastrointestinal tract	Cortisol excess	Leukemia	Idiopathic scoliosis
Alcohol use	Pulmonary system	Type 1 diabetes mellitus		Osteogenesis imperfecta
Smoking	Autoimmune system	Primary or secondary gonadal insufficiency		Thalassemia