Hallux valgus may be related to congenital causes as well as acquired diseases, such as poliomyelitis and cerebral palsy. 1. Congenital causes: Heredity, genetic mutation caused by the developmental disorders of foot tendons and ligaments in the fetal period. The development of other tendons and ligaments in the foot is not synchronized, leading to the phenomenon of clubfoot. 2. Induced by acquired diseases (1)Poliomyelitis: it leads to spinal cord edema, causing spinal cord neurological paralysis or neurological dysfunction, which can cause lower limb deformity with paralysis of peroneus longus and peroneus brevis, resulting in inversion deformity. (2) Cerebral palsy: a history of hypoxia in the perinatal period or after birth leads to abnormalities of sensory afferent nerves into the spinal cord. Persistent paralysis of the lateral aspect of the lower leg, caused by spasm and traction of the tibialis anterior muscle, may disappear or be reduced during sleep but becomes more pronounced with stimulation. When inversion of the foot occurs, it is recommended to seek prompt medical attention, follow the doctor’s instructions for further examination, clarify the cause with the doctor’s help, and provide targeted management or treatment.