The main reason for a child to walk inward may be due to clubfoot, the specific causes of clubfoot include genetic factors, calcium deficiency, vitamin D deficiency and so on. 1. Hereditary factors: It is very likely that children walking inwardly is caused by congenital genetic factors, for example, the child’s parents have the gene of pronator teres, they walk inwardly, which is passed on to the child. 2. Calcium deficiency: If the child’s own body lacks calcium, which causes the abnormal development of the bones, there is a foot inversion deformity, then the child walks inward. 3. Vitamin D deficiency: Whether it is a congenital lack of vitamin D or an acquired lack of vitamin D, it may cause abnormal metabolism of calcium and phosphorus in the body of the child, resulting in hallux valgus deformity, and ultimately, the child will walk inward. There may be other reasons for children to walk inward, such as cerebral palsy, abnormal development of foot tendons, etc. It is recommended to take your child to the doctor promptly for treatment. It is recommended to take your child to a doctor to identify the cause of the problem and take appropriate treatment measures.