佝偻病是我国卫生部重点防治的四病(小儿肺炎、腹泻、佝偻病、贫血)之一,目前仍然是我国基层医院儿科临床工作的难点和盲点。晚发性佝偻病是近年来发现并受到重视的疾病,据调查,山东省东营市和淄博市的8～15岁学龄期儿童中本病的发病率高达10%～15%。 Rickets is one of the four major diseases (childhood pneumonia, diarrhea, rickets, anemia) that our country’s Ministry of Health focuses on prevention and treatment. It is still the difficult and blind spot for pediatric clinical work in primary hospitals in our country. Late onset rickets is a disease discovered and valued in recent years. According to the survey, the incidence of this disease is as high as 10% -15% in school-age children aged 8-15 years in Dongying City and Zibo City of Shandong Province.