Psychosis is a disease with a high relapse rate, but unlike other diseases that are prone to relapse, most relapses are first noticed by the patient, while the first person to notice a psychotic relapse may be someone close to the patient. This requires family members to be good at observing the “telltale signs” of relapse in order to identify relapse as early as possible. 1. Sleep. When the disease is in remission, the patient usually sleeps well; if for no reason there is difficulty falling asleep, waking up early, or too much bed rest during the day, we should pay attention to the possibility of relapse. 2.Self-awareness. Patients who originally recognized that they had the disease and consciously took medication, once they did not admit to having the disease again, or even refused to take medication, should be highly alert to disease relapse. 3, emotional changes. Temperament becomes different from usual, may become impulsive, or inexplicably lose temper, unreasonable, pestering; some will be sad and happy, or become indifferent to friends and relatives. 4. Changes in expression. In the upcoming illness, patients often show a dull gaze, eyes straight, external stimuli difficult to cause changes in their expression, etc.. 5. Attitude toward people around. If the patient is found to be more alert to people around or hostile to people, or even becomes withdrawn, uncooperative, and does not interact with people, consider a possible relapse of the disease. 6. Daily life situation. Before the relapse of mental illness, life becomes lazy, does not care about personal hygiene, does not take the initiative to wash and change clothes, or becomes excessively sophisticated, dressing in the mirror all day long, busy. 7. Study and work conditions. In the early stage of disease relapse, many patients show slack discipline, or work, study distracted, inattentive, learning performance decline, work efficiency decrease. 8.Speech and behavior change. Speech becomes different from usual, lack of logic, talk in a way that is difficult to understand, or talk to oneself for no reason; behavior is different from usual, sudden fear of the surroundings, do some incomprehensible things; or the compulsive behavior that has been done in the past reappears, such as repeatedly washing hands, checking whether the doors and windows are closed, etc. 9. Somatic discomfort. Some patients often complain of dizziness, headache, fatigue, limb pain, etc. before the onset of the disease, but these symptoms are often variable and vague. If family members find that the patient has the above abnormal signs, they should be alert to whether the psychosis is recurring and should go to the hospital in time to take effective measures to prevent further development of the disease.