High muscle tone in the lower limbs of babies mainly manifests as difficulty in opening the legs when holding the baby, when keeping the baby in sitting position, because of the increased muscle tone in the lower limbs, it is difficult for the baby to keep the sitting position, the body is easy to fall back, and the lower limbs are easy to cross in scissor-like shape and pointy feet when holding the armpits to stand up. In addition to the above manifestations, babies are often accompanied by internal rotation of the upper limbs, clenched fists, head tilting, body jerking, etc., and there are high-risk factors before, during, or after birth, such as prematurity, low birth weight, and hypoxic-ischemic encephalopathy. If the above manifestations and medical history are present, it is important to pay attention to the possibility of high risk of cerebral palsy, and to bring the baby to the pediatric rehabilitation department in time for the necessary early comprehensive rehabilitation treatment.