Calcium supplementation may cause bone age. If the child is not deficient in calcium, generally only need to ensure that the child’s reasonable diet, balanced nutrition can be, do not have to special calcium supplement, only through the examination of the child is determined to be deficient in calcium, only under the guidance of the physician to take calcium supplements for calcium, and should pay attention to more sunshine or supplementation of vitamin D in order to promote the absorption of calcium. Long-term calcium supplementation may lead to large bone age. For children without calcium deficiency, long-term calcium supplementation may lead to calcium deposition in bones, causing premature healing of the epiphysis, which in turn leads to large bone age; for patients without calcium deficiency, calcium supplementation is generally not necessary, and they only need to pay attention to balanced nutrition without picking at their daily diet. If your child is found to be deficient in calcium, you can take calcium supplements as prescribed by your doctor. While taking calcium supplements, you should also get more sunlight to promote the synthesis of vitamin D in the skin, or take vitamin D supplements orally to promote the absorption of calcium.