Rickets
Vitamin D deficiency rickets, a common pediatric disease, a chronic nutritional disease, accounting for more than 95% of total rickets. This disease is caused by systemic calcium and phosphorus metabolism in children due to insufficient vitamin D in children. The abnormality causes the calcium salt to be unable to settle normally on the growing part of the bone, and eventually bone deformity occurs. It is mainly characterized by growing long bone metaphysis or incomplete mineralization of bone tissue, or osteomalacia, which is more common in infants and children under 2 years old. Although rickets are rarely directly life-threatening, due to the slow onset, it is easy to be ignored. Once obvious symptoms occur, the body's resistance is low and it is easy to be complicated by other diseases such as pneumonia, diarrhea, and anemia. In recent years, the incidence of severe rickets has decreased year by year, but the incidence of mild and moderate rickets is still high.
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