Parents often hear doctors say that children have high muscle tone, but what is muscle tone? What is considered high muscle tone? Myotonia: Myotonia is the basis for maintaining various postures and normal movements of the body, and is expressed in various forms. If a person is at rest, the tension in the muscles of the body is called resting muscle tone. Whether the muscle tone is too high, there is no objective instrument can be measured, completely rely on the doctor’s sense and experience, sometimes the baby does not cooperate may be wrongly judged as a manifestation of high muscle tone, such as the examination, the baby is reluctant, the leg tense straight …… In addition, children stand, at first are toes on the ground, but generally children will slowly put However, children with high muscle tone will always stand on their tiptoes, and even if you press down with your hand, you may not be able to put their feet down. Children with high muscle tone have tighter muscles than the average child and move more rigidly. When changing diapers, a normal child should be able to open both legs to 120 degrees, but a child with high muscle tone cannot open them. A four-month-old child will jump when he stands on the belly of an adult, but a child with high muscle tone will only stand straight and sink his toes into the flesh of the adult; when a baby with high muscle tone takes a bath, the moment he approaches the tub, his fists are clenched and his whole body is tense and rigid. Children with high muscle tone are more easily irritated, startled by the sound, continue to cry, have difficulty sleeping, have difficulty inserting their arms into the sleeves when dressing, have difficulty breaking their fists when bathing, and when the lower extremities just angle to the bath tub or water surface, the child’s whole body immediately becomes a rigid position. Children with high muscle tone have straight, inwardly crossed lower limbs in a scissor-like position. The family can make a simple observation, such as: is the baby very crybaby since birth, not easy to fall asleep, love to wake up, easy to anger, spitting up milk frequently? Carefully observe the child’s sleeping posture, is it a normal baby sleeping posture (upper limbs are W-shaped, lower limbs are M-shaped)? Try his arms and legs after falling asleep, are they soft? When awake, can the hand clenched in a fist be broken, does it take a lot of force to break it? Lift the upper limb, can it be raised? Hold the knee joint of the lower limb with one hand, and hold the small foot with the other hand and push it towards the abdomen, can the baby’s thighs press against the abdomen, and can the back of the foot press against the calf? Can the baby lift his head when lying prone? It is also important to observe the child’s intellectual development. The main symptoms of hypertonic cerebral palsy are divided into the following categories. 1. Asymmetric neck extension makes the head rise, causing the patient to gaze upward and use facial muscle groups to assist. It may also be assisted by tongue retraction and jaw extension. 2. Tension between the upper trunk and scapular girdle causes the upper extremities to always cling to the body with the lower part unable to leave; the ribs are continuously elevated, creating thoracic flexion. The scapula and scapular girdle are elevated, causing abduction and upward rotation of the scapular girdle. The shoulder is extended and internally rotated, the elbow is extended, the wrist, the fingers are flexed, the forearm is internally rotated downward and the wrist is ulnarly deviated. 3. Low back projection with mild hip flexion. The external abdominal obliques and gluteus maximus are unable to act. Asymmetry is often seen leading to hip subluxation. There is a tendency for the hip joint to be internally affected and internally rotated, and the knee joint to be flexed and the ankle joint to be plantar flexed. 4. Mixed type This type accounts for about 10% of cerebral palsy. It has the characteristics of more than two types at the same time. The etiology and location of lesions are similar to the corresponding cerebral palsy type. The clinical manifestations are different. The spastic type and the mixed type of tardive dyskinesia are often seen.