Rickets is a nutritional disease caused by a deficiency of vitamin D, which leads to a disorder of calcium and phosphorus metabolism and consequently abnormal bone development. In the early and active stages of rickets, the main symptoms are low levels of vitamin D and disordered calcium and phosphorus metabolism. At this stage, bone development abnormalities may not be clearly noticeable, so it is recommended to consult an endocrinology department. During the residual stage, when skeletal deformities appear, rehabilitation treatment is necessary, and consultation with a pediatric rehabilitation department is advisable. Severe skeletal deformities may require surgical correction, necessitating consultation with an orthopedic department.