In the elderly, sudden convulsions are mainly considered as seizures, cerebrovascular diseases, and intracranial occupying lesions, as follows: First, seizures: it may be epileptic seizures, and the convulsions will appear suddenly, manifesting as loss of consciousness, limb convulsions, accompanied by corneal arch, foaming at the mouth, and other symptoms, and usually may be recovered within a few minutes. The second aspect is cerebrovascular disease: the sudden appearance of convulsions in the elderly should be considered to be caused by acute cerebrovascular disease, such as secondary epilepsy caused by intracranial hemorrhage and other reasons. When there is this condition, go to the emergency department or neurology department of the hospital as soon as possible for head CT and magnetic resonance examination to clarify. The third aspect, intracranial occupying lesions: to consider whether it is caused by intracranial tumors, intracranial occupying lesions, the treatment should be based on the cause.