The cause of schizophrenia is unknown, and it is quite difficult to prevent relapse at all, but by doing the following, the relapse rate can be greatly reduced. Adherence to maintenance treatment: According to statistics, 54% to 77% of relapsers discontinue their medication on their own. As for the duration of maintenance treatment varies from person to person. Regular review at the hospital: In general, it should be reviewed once a month, and if there are special circumstances, you can visit the hospital at any time. Regular review is good for timely detection of changes in the patient’s condition and problems in the course of drug treatment, so that the dose can be adjusted in time and the compliance of treatment can be improved. Create a good environment: give them a calm and regular living environment; promptly relieve patients’ psychological problems; motivate and accompany them to participate in activities; exercise patients’ ability to live, work and adapt to society, and have confidence in patients so that they can learn to take care of themselves. Pay attention to identifying signs of relapse: such as sleep disturbance, mood changes, dullness and fogginess, unresponsiveness, laziness in life, etc.; or the reappearance of the original psychiatric symptoms; the original ability to take medication actively, suddenly deny having the disease and refuse to take medication, etc. If you find any of the above signs, you should be alert and seek medical treatment in time, so that you may avoid a relapse or reduce the severity of relapse.