Patients and family members all share the same hope of meeting a good and experienced doctor, getting the correct diagnosis and the most effective treatment, and being able to recover soon and return to work and study. However, doctors share the same feelings as everyone else, but diseases are complex and each doctor’s clinical experience and treatment ideas are different, especially in psychiatry, which is more special. Unlike other departments, there are many tests available in psychiatry. For example, brain CT or MRI for organic brain disease; chest X-ray for pneumonia; ultrasound or blood tests for liver disease. These tests will give the doctor favorable evidence for the diagnosis of the disease and can clarify the diagnosis. For psychiatry, the most commonly used test is psychological test, which only serves as an auxiliary diagnosis. Except for organic mental disorders, where the cause is clear, the majority of mental disorders have an unclear etiology. Therefore, the expertise and clinical experience of the psychiatrist or psychologist are very important. The doctor mainly makes a correct diagnosis for the patient by talking to the patient, conducting a face-to-face psychiatric examination, analyzing the psychiatric symptoms present in the patient, and combining them with the medical history provided by the family. Psychiatric examination is a basic skill that psychiatrists must master and requires years of clinical experience. Physicians who are highly skilled in medicine are experienced in analyzing psychiatric symptoms for psychiatric examinations and can elicit and tap into psychiatric symptoms to arrive at the correct diagnosis and timely treatment. An inaccurate diagnosis may delay the condition and may also aggravate it. Therefore, it is very important to make a diagnosis at the first visit. Clinically, some doctors tend to misdiagnose negative symptoms of schizophrenia as depression and treat depression as a negative symptom of schizophrenia. However, the treatments for these two disorders are completely different, and the medications chosen are completely different. In some cases, after a year to two years of treatment, the patient’s condition has not improved, and after changing hospitals and doctors to re-perform psychiatric examinations and detailed analysis of the medical history, the diagnosis is clarified, and the medication is adjusted according to the patient’s condition, the condition improves significantly. However, a detour had been taken and the condition was delayed. With my 23 years of clinical diagnostic experience, I believe that: first, a detailed analysis based on the collected medical history, which is the basis for vertical diagnosis. Second, a detailed psychiatric examination with the patient face to face to analyze the content of psychiatric symptoms, which is the horizontal diagnostic basis. Then, combined with some auxiliary examinations, such as psychological tests, longitudinal and horizontal analyses are conducted to make a correct diagnosis of the patient. With the correct diagnosis, the correct treatment plan can be formulated and the patient’s condition can be significantly relieved. Therefore, psychiatric examination in face-to-face consultation and a detailed medical history from the patient’s family are very essential. Some family members or patients are reluctant to have an in-person consultation, which is undesirable. In addition, some family members do not report their condition comprehensively and objectively, and some family members and patients even conceal their condition, which is undesirable. This may result in the physician’s inability to elicit psychiatric symptoms during the examination, which may misdiagnose the condition, delay treatment, and affect the patient’s recovery of social functioning.