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人体内维生素C的来源主要靠从食物中摄取,机体自身不能合成,因此,对6～2岁小儿如不注意合理喂养,极易造成维生素C缺乏。维生素C缺乏能导致结缔组织中纤维形成障碍,细胞间结合质减少,使牙质肝样组织形成停滞,毛细血管出血,创伤愈合延迟,叶酸和铁的代谢发生障碍,引起贫血等一系列的病理改变。维生素C缺乏患儿最早的改变是骨骼,尤以小腿部的肿痛为多见,其皮肤不红肿,压痛明显,但无指压痕迹,患儿双腿屈曲形如蛙腿,不愿移动呈假性瘫痪。其次是出血,出血可发生在全身任何部位,出血点大小不等,程度不同,多见骨膜下出血。再次是牙齿病变,牙龈充血与水肿,如肿胀面积扩大可遮盖牙齿,甚至表面有瘀血堆积。
The source of vitamin C in the body depends mainly on food intake, the body itself can not be synthesized, therefore, 6 to 2-year-old children, if not pay attention to reasonable feeding, can easily lead to vitamin C deficiency. Lack of vitamin C can lead to connective tissue formation of fiber barriers, reduced intercellular junction mass, the formation of dentate liver-like tissue stagnation, capillary bleeding, delayed wound healing, folic acid and iron metabolism disorders, causing anemia and a series of pathologies change. The earliest changes in children with vitamin C deficiency is skeletal, especially in the pain of the lower leg is common, the skin is not inflamed, tenderness, but no finger pressure marks, legs flexion of children like frog legs, unwilling to move Was false paralysis. Followed by bleeding, bleeding can occur in any part of the body, bleeding points vary in size, degree, more common periosteal hemorrhage. Once again, dental lesions, gingival congestion and edema, such as the expansion of the swelling area can cover the teeth, and even the surface accumulation of blood stasis.