佝偻病是一种常见的婴幼儿营养不良症,主要是因为身体中缺乏维生素D,致使钙与磷的吸收不正常.如果患儿钙磷代谢失常形成恶性循环,就会进而引起神经、骨骼、肌肉及造血系统病变,其中以骨骼变化更为显著.儿童患佝偻病的主要原因不外以下几个方面:(一)日光照射不足.在人的皮肤下面,有一种叫做F—脱氢胆 Rickets is a common infantile malnutrition, mainly due to the lack of vitamin D in the body, resulting in abnormal absorption of calcium and phosphorus. If children with calcium and phosphorus metabolism to form a vicious circle, it will cause nerves, bones, muscles And hematopoietic system lesions, including bone changes more pronounced.The main reason for children suffering from rickets is nothing more than the following aspects: (a) lack of sunlight exposure below the human skin, there is a called F-dehydrogenation