After a stroke, patients with mild hemiplegia who can take care of themselves generally do not affect their life expectancy and can survive for a long time, but patients with severe hemiplegia who are bedridden will have a much shorter life expectancy. Patients with mild hemiplegia can take care of themselves or semi-care for themselves, so they can insist on exercise, take oral medication and do a good job in secondary prevention of cerebrovascular disease to delay the development of cerebrovascular disease, and their survival time will not be affected. However, patients with severe hemiplegia and bed-ridden patients are prone to complications after bed-ridden, such as pneumonia, urinary tract infection, arterial and venous thrombosis of the lower limbs, and decubitus ulcers, which can seriously threaten the patients’ life safety. With good care and nutrition, patients can survive for several years, but with improper care and poor nutrition, they may become life-threatening within a few months. Therefore, secondary prevention of cerebrovascular disease is crucial, and it is necessary to actively control the risk factors of cerebrovascular disease and change the bad habits of life.