Walking abnormally one month after a grand mal seizure is usually considered to be caused by impaired brain function. If walking is abnormal one month after a grand mal seizure, such as walking unsteadily and falling down easily, it may be caused by nerve damage in the brain. After a grand mal seizure, the brain is deprived of blood and oxygen, which affects brain function, and the symptoms such as unsteady walking and small steps may occur when the basal ganglia, cerebellum, and brainstem are involved. If walking abnormally one month after a grand mal seizure is not necessarily caused by epilepsy, but may also be caused by cerebrovascular disease, it is recommended to go to the hospital as soon as possible for a physical examination, and a professional doctor to make a clear diagnosis, and then symptomatic treatment.