The manifestations of early schizophrenia include the following: 1. Mood changes: Patients tend to experience depression and anxiety, have mood swings, and are particularly prone to temper tantrums; 2. Cognitive changes: Patients may have strange, odd, or abnormal beliefs or ideas; 3. Changes in perception of themselves or the outside world: Patients may feel that their noses are particularly long or feel that their surroundings have become unfamiliar; 4. Behavioral changes Patients will have social withdrawal or sensitivity and suspiciousness, and social function will decline, such as students’ performance in reading will decline, and employees’ work efficiency will decline; there will also be new hobbies, including special obsession with abstract concepts, special focus on philosophy or religious superstition, and patients will suddenly become interested in these things and often go to research; 5. and a sense of physical weakness, inexplicable pain, headache, back pain or with gastrointestinal symptoms such as nausea and vomiting; there are also some patients who will suddenly have obsessive-compulsive as the first symptom, while all other aspects remain normal after the patient develops symptoms. Patients will therefore give rationalizations for the symptoms that appear in them, often without drawing the attention of their families.