Once children develop a square skull due to rickets, parents must supplement with vitamin D and trace amounts of calcium based on the symptoms of the rickets in a timely manner. Additionally, it is crucial in daily life to ensure adequate sun exposure, which benefits the skin's synthesis of vitamin D and thus enhances calcium absorption. Once the square skull has formed, with timely treatment and as the child grows older, the shape of the skull will undergo certain changes and thus can improve, and may even fully recover. In daily life, it is essential to maintain a balanced and reasonable diet, and timely supplement calcium and vitamin D based on children's symptoms to prevent the development of rickets due to deficiencies.