One and a half year old babies walking inside eight no other symptoms, generally do not need to be corrected. As one and a half year old babies just learn to walk, there will be a slight internal eight is normal, do not need to worry too much, if the internal eight is serious, affecting the aesthetic, can be corrected through the correct stride, straight line step, exercise, calcium supplements and other ways. 1. Setting up the right step: Before the baby walks, parents help the baby to set up the right step and walk appropriately, step by step, the symptoms can be improved. 2. Straight-line walking: Let the baby walk along a straight line of about 10-15 centimeters, back and forth, under the guidance of parents, the pace from slow to fast, and gradually improve. 3. Exercise: before the baby goes to bed, hold the left hand below the ankle bone about a finger width, the right hand holds the baby orthopedic, pull outward evenly, and then the orthopedic gently pushed upward, feet take turns to carry out, adhere to 200 or so every day, can be significantly improved. 4. Supplementary calcium: baby within eight may be due to a lack of calcium caused by appropriate calcium supplementation to prevent bone deformity. If the child is four years old, there is still a serious internal eight, obviously abnormal, need to go to the hospital in time to correct.