Babies with high muscle tone can show symptoms such as emotional abnormalities, postural abnormalities, and joint abnormalities. High muscle tone is a neurological disorder, which is commonly known as the muscles are more rigid and restricted in movement. 1. Emotional abnormalities: babies with high dystonia often show emotional abnormalities such as irritability, persistent crying, scaring at the sound of the voice, and difficulty in falling asleep. 2. Postural abnormalities: Typical symptoms include lower limbs straightened, inwardly crossed in a scissor-like manner, and inability to lie on their stomachs, difficulty in separating the legs when changing diapers, inability to tuck the legs up, and difficulty in inserting the arms into sleeves when putting on a shirt, and so on. 3. Abnormal joints: When checking the muscle tone of the baby, the doctor can obviously feel that the joints of the limbs are not flexible and have resistance, such as not being able to make dexterous joint extensions and contractions normally. If the above symptoms occur, it is recommended to go to the hospital for early treatment.