Some patients will give a very concise description of the characteristics of their condition. Some patients provide too much information in a disorganized manner, and often some patients are not answering the right questions or are vague, such as asking how long they have had the disease. The doctor wants the answer to be a specific time, not since junior high school or for a long time, and a simple question may be asked two or three times in a row. Most of these situations stem from a lack of understanding of the process of treatment, so learning to see the doctor is beneficial to both the doctor and yourself. When visiting a doctor, it is important to understand how the doctor thinks about the consultation: a. Complaint: the main pain the patient feels, the main reason for the visit or the most obvious symptom and its duration. The present medical history: It is a description of the whole course of the patient’s illness, i.e. the occurrence, development, evolution and treatment. The following contents and procedures are often asked: 1. the disease situation and the time of illness. Including the time of onset, the urgency of the onset, the cause or trigger, many diseases have certain causes or triggering factors before the occurrence, such as excitement or exertion can trigger angina, into the unclean diet can cause acute gastroenteritis. Some patients may also take a coincidental situation as the cause or trigger and give it to the doctor to judge. 2.Characteristics of the main symptoms: including the time of appearance, location, nature, duration and degree, and factors of remission or exacerbation. 3.Development and evolution of the disease: In the course of the disease, changes in the main symptoms or the appearance of new symptoms can be regarded as the development and evolution of the disease. 4.Concomitant symptoms: It refers to some other symptoms that appear at the same time on top of the main symptoms. 5. Diagnosis and treatment: The diagnostic tests and their results, the name, dosage, route of administration, course of treatment and efficacy of the drugs used in the treatment before this visit. 6. General condition during the course of the disease: mental and physical status, diet, sleep and urination and defecation after the disease.