Rickets is a chronic nutritional disorder caused by a deficiency of vitamin D in infants, children, and adolescents, leading to calcium-phosphorus metabolism disorder and characterized by bone inflammation. Treatment is based on vitamin D supplementation, with emphasis on strengthening exercises and active or passive correction for children with existing skeletal deformities. In severe cases, corrective surgery may be considered. Parents should take their children for timely medical consultations, avoid blind medication, and observe their child’s symptoms to assist in timely treatment.