Children do not grow, is it because of calcium deficiency ah? Calcium supplementation and height increase are two different things! Calcium as a component of bones, if the calcium deficiency is caused by rickets, the main manifestation is skeletal deformity, while generally short people with more uniform height have no problems with their bones. Calcium supplementation in the usual sense is a timely replacement of calcium lost from the body to maintain bone density. Calcium supplementation does not make the bones longer or even thicker, and if supplemented alone even for rickets, its calcium absorption is problematic and its efficacy is very limited when not supplemented with vitamin D at the same time. But it can neither affect the speed of growth nor the length and growth of bones. Moreover, once calcium is consumed in excess, it can easily lead to urinary stones, constipation and other adverse effects, which can cause illness to the child and even affect growth. In addition, the most convenient and effective way to supplement calcium and vitamin D is to insist on drinking milk, which is relatively high in calcium and fortified with vitamin D. And childhood is already able to absorb calcium from milk well, so if children can insist on at least 2 bags per day, that is, 400 ml of milk, calcium supplementation is basically guaranteed, and for excessive growth rate, or symptoms of obvious pain in the lower limbs should go to the hospital or The health care department should be consulted in time. The growth of human body is a complex physiological process, but also the result of a series of factors, the main causes of children’s short stature are genetic factors, metabolic diseases, endocrine system and nutritional deficiencies, which may affect the height of children. Therefore, parents should pay attention to learning about growth and development, and closely monitor their children’s growth and development. Once a child’s growth is found to be slow or too fast, the cause should be identified as soon as possible and measures should be taken to intervene for the cause so as not to delay the condition and miss the best time for treatment.