Secondary prevention refers to the clinical treatment after the occurrence of the disease, as well as the early and recovery period, in order to prevent the aggravation of the disease and prevent disability and dysfunction. Interventions include controlling patients' high-risk factors, rehabilitation treatment and training guidance, health education and psychological counseling. Patients who have suffered from stroke have a higher risk of recurrent thrombotic diseases, and they need lifelong secondary prevention to prevent the recurrence of stroke.
Three-level prevention refers to actively carrying out functional rehabilitation exercise for the disability caused by the disease, while avoiding the recurrence of the primary disease. The contents mainly include rehabilitation medical treatment, training guidance, psychological consultation and knowledge popularization. In order to restore or compensate the patients' defective function as much as possible and enhance their ability to participate in social life.