Rickets is a nutritional metabolic disease caused by a lack of vitamin D, which also involves changes in the bones. Once rickets is definitively diagnosed, it is essential to start aggressive treatment. Treatment should be carried out under the guidance of a hospital doctor with high doses of vitamin D, while also appropriately supplementing the child with calcium. It's necessary to regularly draw blood to test for vitamin D levels and to monitor the improvement of various indicators in the child. When vitamin D levels have fully normalized, there will no longer be a need to administer high doses of vitamin D to the child, and the dosage can be adjusted to the physiological requirement. Additionally, it is crucial to increase the child’s outdoor activities and exposure to sunlight, as this is very helpful for the treatment and recovery of rickets. (For specific medication use, please follow the guidance of a doctor and do not self-medicate.)