Most of them are the early manifestation of brain injury. Generally, they still have unstable vertical head at the age of three months, and their hands still have no active grasping awareness at the age of five months. If there are any of these manifestations and medical history, you need to visit the hospital promptly and have the relevant examinations such as cranial MRI done in time to give appropriate early intervention. During the intervention, it is necessary to reduce the muscle tone of the back muscles, increase the tension of the anterior body flexors, and control the internal retraction and stability of the shoulder joint, follow the developmental pattern from head to tail, and give scientific and formal rehabilitation.