Infant thumbs are mostly physiological, and can be treated with massage, grasping exercises and immobilization. If it can not be relieved, you need to go to the hospital in time for treatment. Infants born soon, the cerebral cortex has not yet matured, muscle control is poor, muscle tension is high, it is likely to appear in the case of the thumb buckle. This is a normal phenomenon, so don’t worry too much. 1. Massage: Parents can gently push out the infant’s thumb, massage from the root of the thumb to the tip of the finger, and massage the other parts of the infant’s hands at the same time, to help the infant’s five fingers to stretch and improve the situation of the thumb buckle. 2. Grasping practice: parents can slightly open the baby’s hand, put the baby can grasp the object to prevent the thumb buckle, the object should be from small to large, from thin to thick, from thin to thick. You can also put some of the baby’s favorite toys, so that the baby actively to grasp, to improve the situation of thumb buckle. 3. Fixation method: generally used during the infant’s sleep. Parents can wrap a soft handkerchief around the root of the infant’s thumb to immobilize the thumb, but should avoid wrapping it too tightly and for too long, so as not to affect blood circulation. This can hinder the thumb from buckling to a certain extent. If the infant’s thumbs are not relieved for a long period of time, he or she should go to the hospital in time for a head CT or MRI examination. In case of brain injury causing the condition of thumb inching, such as cerebral palsy, functional training, orthotic application, surgery and hyperbaric oxygen therapy can be carried out. Parents are advised to seek medical treatment when they find abnormalities in their infants, after ruling out physiological.