有的幼儿常烦躁不安,易夜惊、头部出汗发痒,并伴有枕秃,重者由于头骨软化易发生方颅、出牙晚、囟门闭合迟等现象,有的甚至出现鸡胸,两腿是X形或O形等症状。对此有的家长认为,这是缺钙引起的佝偻病,只要多给孩子吃钙片,就可预防。其实,这种观点是不科学的。佝偻病发生的根本原因是孩子体内缺乏维生素D,故在医学上称维生素D缺乏性佝偻病。 Some children often irritability, easy to night scared, itchy head sweating, and accompanied by pillow bald, severe skull due to skull prone, late teeth, fontanelle closure late phenomenon, and some even appear chicken breast, Legs are X-shaped or O-shaped and other symptoms. Some parents think that this is caused by calcium deficiency rickets, as long as children give more calcium tablets, you can prevent. In fact, this view is unscientific. The root cause of rickets is the lack of vitamin D in children, so in medicine called vitamin D deficiency rickets.