The short height of children may be due to protein and calcium deficiency. There are various manifestations of calcium deficiency, and parents should learn to determine whether their children are calcium deficient and the degree of calcium deficiency based on the manifestations, so that they can provide timely help to their children in case of calcium deficiency. For children with calcium deficiency, generally provide children with calcium-rich foods, such as fish, shrimp, kelp, rib soup, etc. Also, eat more foods rich in vitamin D, such as pig liver, lamb liver, beef liver, etc., to promote the absorption of calcium. It is also important to pay attention to reasonable rest and ensure sufficient sleep time. In general, children with mild calcium deficiency can improve the symptoms of calcium deficiency after dietary supplementation. If the symptoms are more serious, vitamin D and calcium supplements can be taken under the guidance of doctors. In addition, such as growth hormone deficiency is also an important cause of short height, which should be tested and, if necessary, growth hormone injection should be treated.