The common manifestations of hypertonia are mainly muscle tension and limb stiffness. The movement of the affected limbs is obviously reduced, and the movement is stiff, stereotyped, awkward and uncoordinated. The more serious manifestations of muscle tension are the symptoms of cerebral palsy, which are as follows: i. The hands are often clasped with the thumbs inside, the remaining four fingers are held in a fist outside, the back of the hand is held forward palm down, and it is not easy to open the hand even if it is massaged for them. Second, the arm is pulled forward, upward when it is difficult or not straight, the left chest cross action is also more difficult. Third, the lower limb muscles are stiff, often crossed when being lifted up, or the toes stand inwardly buckled, etc. The stiffness of the legs is more obvious when bathing in water. IV. The spine has varying degrees of kyphosis or scoliosis. V. The head often cannot be placed in a central position and is often turned to the side or tilted back.