维生素D缺乏性佝偻病是婴儿期常见的营养缺乏性疾病,但也可发生在年长儿,称晚发性或迟发型佝偻病,亦称青春期佝偻病。近年来其患病率呈上升趋势,已引起国内外学者的关注。现将有关研究进展综述如下。 Vitamin D deficiency Rickets is a common nutritional deficiency disease in infancy, but can also occur in older children, said late onset or delayed rickets, also known as adolescent rickets. In recent years, its prevalence has been on the rise, which has aroused the concern of domestic and foreign scholars. The relevant research progress is summarized below.