Cerebral palsy can be detected by clinical symptoms and signs. Head imaging and electroencephalography may also be used as an adjunctive test. The main clinical manifestations of cerebral palsy are motor deficits due to damage to the pyramidal system, which may be complicated by damage to the cerebellar brainstem and spinal cord, and may be characterized by varying degrees of paralysis, increased muscle tone, hyperreflexia, and positive signs of pathology, which may be accompanied by epileptic seizures, visual disturbances, hearing impairments, behavioral abnormalities, and cognitive abnormalities. Cerebral palsy can also be detected by abnormal changes in muscle tone and tendon reflexes on examination by a doctor, which can be manifested as the folding knife sign, in which resistance suddenly disappears when the muscles are maximally stretched out; and the eyes closed sign, in which the patient stands up with feet together, extends both hands forward and tilts down with eyes closed. In addition, head imaging such as CT and MRI scans of the brain can scan different images of specific internal structures and brain tissues at various levels, with increased density at the lesions. Electroencephalography About 80% of children with cerebral palsy have abnormal brain waves. Electromyography and cerebral impedance flowmetry can be used as adjunctive tests for cerebral palsy. Suspected cerebral palsy should seek medical treatment promptly, and systematic examination and targeted management should be carried out under the guidance of the doctor.