Rickets is a bone disease formed due to a deficiency of vitamin D, clinically referred to as rickets. The early clinical symptoms of rickets, which correspond to the early stages of vitamin D deficiency, primarily manifest as autonomic dysfunction, including night terrors, night sweats, and crying. In the early stages of rickets symptoms, parents often believe the cause to be calcium deficiency. Indeed, vitamin D deficiency can also impair calcium absorption, and these are linked reactions. Therefore, parents should pay attention to supplementing vitamin D, especially in areas with insufficient sunlight, ensuring that children receive less than two hours of sunlight exposure per day. During children's growth phases, it is essential to ensure adequate daily intake of vitamin D, with a basic amount of 400 IU being necessary.