Balding at the back of the head is a common clinical manifestation of rickets, but it does not mean that balding at the back of the head is equivalent to rickets, as there are many causes for this condition. In children with rickets, due to a lack of vitamin D leading to calcium deficiency, their neural excitability increases, which can affect the baby's sleep and cause restless sleep leading to balding at the back of the head. However, children who are in poor nutritional condition might also experience deficiencies in trace elements, such as a lack of zinc or iron, which can also lead to sleep disturbances and balding at the back of the head, indicating that the cause may not necessarily be rickets. Additionally, a small number of children might have an inherent condition of increased neural excitability that affects sleep, leading to balding at the back of the head, which also isn't due to rickets. Therefore, if balding at the back of the head occurs, it is advisable to visit a hospital’s pediatric healthcare department or pediatric outpatient clinic for a consultation and check-up, to actively treat and manage based on the underlying cause.