Rickets is a disorder caused by a deficiency of vitamin D, leading to impaired calcium and phosphorus absorption, which then results in abnormal skeletal development. It is a chronic nutritional disease. Generally, the rickets commonly mentioned is due to nutritional vitamin D deficiency, which is treatable. Typically, encouraging children to engage in appropriate physical activities while supplementing with an adequate level of vitamin D can effectively control the disease, and it can even be cured. However, if there are special circumstances, such as significant liver abnormalities, renal function abnormalities, renal failure, or abnormalities in the thyroid or parathyroid glands, including parathyroid tumors, or congenital hereditary diseases, the treatment needs to be based on the cause in order to effectively control the disease and promote normal calcium and phosphorus metabolism in the body. Congenital hereditary diseases generally make treatment more challenging. Therefore, it is crucial for children with rickets to seek timely medical examination at a hospital. If it is a common case of nutritional vitamin D deficiency, parents should supplement vitamin D promptly according to the doctor's advice for treatment.