Rickets is a common disease in children, nutritional vitamin D deficiency is the most important cause of rickets, rickets is mainly due to vitamin D deficiency in the patient’s body and thus caused by the phenomenon of calcium deficiency. Externally, it is often characterized by increased neural excitability, easy to wake up, and the patient sweats easily, especially during sleep. The appearance of rickets is also often characterized by a square skull, occipital baldness, ectropion of the rib margins, chicken breasts, and O-shaped or X-shaped legs. Also delayed closure of the fontanelle, wide fontanelles, and thinning of the hair are a major feature of rickets. In addition, patients with this disease usually have relatively poor resistance and are easily infected by external viruses and develop some infections, such as colds and diarrhea. Therefore, if patients have the above symptoms, they should go to the hospital in time, to identify the cause of the disease, and then carry out targeted treatment.