Different forced body positions represent the possibility that the body is suffering from a certain disease. When a patient presents with a passive body position for treatment in the hospital, the doctor can first examine the patient based on his or her past medical history. The main medical history examinations are as follows. 1. History of present illness: The history of present illness is the main part of the medical history. Around the main complaint, according to the sequence of symptoms, detailed records of the occurrence, development and changes in the disease from the beginning to the time of consultation and treatment. (1) The time of onset, urgency, possible causes and triggers (including, if necessary, some circumstances before the onset). (2) The time, location, nature, and extent of the main symptoms (or signs) and their evolution. (3) The characteristics and changes of the accompanying symptoms, and the important positive and negative symptoms (or signs) with differential diagnostic significance should also be described. (4) For those with chronic diseases related to the disease or those with recurrence of old diseases, emphasis should be placed on the circumstances and significant changes at the time of the initial onset and the recent recurrence. (5) What kind of treatment has been done since the onset of the disease (including the date of treatment, examination results, name of medication and its dosage and usage, surgical procedure, efficacy, etc.). (6) Important injuries and illnesses of other departments that are not related to this disease and still need to be treated, should be described in a separate paragraph. (7) general condition since the onset of the disease, such as mental, appetite, food intake, sleep, urination and defecation, physical strength and weight changes. 2, past history: past history refers to the patient’s health and disease before the onset of the disease, especially the disease closely related to the current disease, recorded in chronological order. Its content mainly includes: (1) previous general health status. (2) the presence of infectious diseases, endemic diseases and other diseases, the date of onset and treatment. For the patient’s previous illnesses, the name of the disease is available for those with a positive diagnosis, but should be in quotation marks; for those with an uncertain diagnosis, briefly describe the symptoms. (3) Any history of vaccination, trauma, surgery, and allergy to drugs, food and other contacts, etc. (3) Family history: (1) Health status of parents, brothers, sisters and children, any diseases identical to those of the patient, and any diseases related to heredity. The cause and time of death should be indicated in case of death. (2) For familial hereditary diseases need to ask the health and disease status of two lineage III relatives.