山东菏泽市读者翟某来信说:我女儿今年10岁,最近放学回来以后总是喊腿痛、无力,脸上常是汗津津的。老师也反映她上课容易分神,学习成绩逐渐下降。带她去医院就诊,做了各项化验检查,最后被诊断为“迟发性佝偻病”。过去曾听说婴幼儿得佝偻病,为何大孩子还会得呢?答翟某读者:佝偻病多见于1~4岁的婴幼儿。若发生在5岁以上的儿童,则称为“迟发性佝偻病”。这种类型的佝偻病 Daren Heze City, Shandong, a letter from the reader said: My daughter is 10 years old this year, after coming back from school recently always cried leg pain, weakness, his face often sweat Jinjin. The teacher also reflected that she was easily distracted in class and her academic performance gradually declined. Take her to the hospital for treatment, done a variety of laboratory tests, was finally diagnosed as “late rickets ”. In the past have heard of infants and toddlers got rickets, why the older children will get it? A Di reader: Rickets more common in infants 1-4 years old. If occurred in children over the age of 5, then called “delayed rickets ”. This type of rickets