Children with autism may walk on their toes, but toe walking is not necessarily autism, and may be caused by improper walking posture, or diseases such as ischemic-hypoxic encephalopathy, dystonia, and Achilles tendonitis. 1. Improper walking posture: the incorrect posture of using the forefoot to walk when learning to walk, and then walking for a long time will lead to the phenomenon of walking on tiptoes. 2. Ischemic-hypoxic encephalopathy: The neurological function is impaired due to the lack of blood and oxygen in the brain during the neonatal period, causing the symptoms of unsteady gait and toe walking. 3. High muscle tone: due to the abnormal development of the central nervous system, the muscle tone of the lower limbs is elevated, resulting in toe walking. 4. Achilles tendonitis: due to excessive exercise or the role of external forces, can lead to the Achilles tendon of the heel to produce aseptic inflammation and cause heel swelling, pain, in order to alleviate the discomfort of walking heel pain, will cause walking on tiptoe. There are many causes of toe walking, if parents find that their children often appear to walk on their toes, they should go to the regular hospital in order to clarify the cause of the disease, and receive treatment as soon as possible, which will help to improve the symptoms.