1 that the hospital in the process of medical treatment if there is medical fault; 2 can be the hospital's medical records and related materials, including: outpatient (emergency) and hospitalization records in the hospitalization records (i.e., admission records), temperature, medical orders, laboratory tests (inspection reports), medical imaging information, special examination (treatment) consent, surgical consent, surgery and anesthesia records, pathology reports, Nursing records, discharge records. The normal way of obtaining the above information is through the patient himself/herself and his/her family members. If this is not possible, the patient may apply for preservation of evidence in the court case, and the court will make copies of the information at the hospital. According to the regulations, the medical institutions for their own equipment or technical conditions limited to the patient can not diagnosis and treatment, the obligation to timely referral. If the hospital did not exhaust the obligation to refer, delay the condition caused by the patient casualties, the hospital is at fault, should bear legal responsibility for sealing and require the hospital seal; 3 to the Municipal Health Bureau to apply for and authorize the Municipal Medical Association for the technical appraisal of medical accidents; 4 if medical malpractice, you can file a lawsuit to the court for compensation.