Bone Status on Patients With Genetic Hemochromatosis: a 3 Years Descriptive and Evolutionary Study

Inclusion Criteria: * Patients between 18 and 80 years * C282 homozygosity Exclusion Criteria: * corticosteroids during the last 3 months * following treatments during the last 6 months : anabolic steroids, growth hormone, hormone therapy for menopause, tibolone, raloxifene. * following treatments during inclusion or in the last 6 month : teriparatide, parathormone, fluor, strontium ranelate, biphosphonate. * cancer or evolutionary hemopathy (including monoclonal gammopathy) * pregnancy at inclusion time * treated osteoporosis * patient in wich follow up seems hard * inclusion in another study incompatible with this one