The term “psychological illness” is often used to refer mainly to the presence of various psychological abnormalities. Professional tests can be conducted by patients or family members by filling out psychological scales or viewing psychological pictures, etc., as a basis for detecting the existence of psychological abnormalities, but it is impossible to directly determine whether the disease is present. Whether a psychological abnormality exists can be judged from the following perspectives: 1. Psychological tests: There are professional psychologists who design psychological test scales with supporting scoring criteria. Questions are designed for various types of problems that may arise, and are filled out by patients, family members or doctors to obtain a final score, which corresponds to different psychological states according to the interval of the score. For those with particularly pronounced anxiety tendencies, anxiety self-rating scales, Hamilton anxiety scales, etc., or for those with particularly pronounced depression, depression self-rating scales, depression tests, etc., can be used. It is generally not recommended for patients or family members to use the above tests on their own because the scoring is highly subjective, it is difficult to master the use, and non-professionals are not qualified to make their own diagnosis, and it is only for use by clinical professionals. In diagnosing and identifying psychological abnormalities, psychological tests are only for reference, not the only method, and not a definitive method; 2. Observe symptoms: doctors mainly judge from sensation, perception, thinking, attention, etc., such as whether there is sensory allergy, hypoesthesia, etc.; 3. Observe social functions: such as whether there is low self-care ability, poor learning ability, obstacles in interacting with others, difficulty in complying with social 3. Observation of social function: such as low self-care ability, poor learning ability, social interaction difficulties, difficulty in following social rules, etc. As long as social dysfunction and psychological symptoms are present at the same time, psychological abnormalities may exist. If the psychological symptoms are more serious, it is recommended to go to the psychology department of a regular hospital for professional examination to determine the disease and treat it symptomatically.