铁过剩为过量的铁进入机体井在体内沉积，有常染色体显性遗传的原发性铁过剩（血色病）与长期反复输血、注射铁剂等而致的继发性铁过剩两种。重症铁过剩时，过度的铁沉积于肝、胰、心等实质脏器可造成肝硬化．糖尿病及心衰[1,2]。我国尚未见继发性铁过剩发病率及所致脏器损伤的 Iron excess excess iron into the body well in the body deposition, autosomal dominant inherited iron excess (hemochromatosis) and long-term repeated blood transfusion, injection of iron and other secondary iron overload caused by two. Severe iron excess, the excessive deposition of iron in the liver, pancreas, heart and other organs can cause cirrhosis. Diabetes and heart failure [1,2]. China has not yet seen the incidence of secondary iron overload and organ damage