Legal analysis: legally speaking, the consent form of operation, anesthesia and power of attorney can be signed by the patient himself, but in practice, the hospital often requires the patient himself and his close relatives to sign the consent form of operation and anesthesia. The main purpose of the hospital is to avoid the risks that may be brought by the operation, and to prevent the troubles and disputes that the unpredictable risks in the operation may bring to the hospital and medical staff.

Legal basis: Civil Code of People's Republic of China (PRC).

Article 128 If a patient suffers damage in medical activities and the medical institution or its medical personnel are at fault, the medical institution shall be liable for compensation.

Article 1219 Medical personnel shall explain the patient's condition and medical measures in their medical treatment activities. If surgery, special examination and special treatment are needed, the medical staff shall explain the medical risks and alternative medical schemes to the patients in a timely manner, and obtain their clear consent; If it is impossible or inappropriate to explain it to the patient, it shall explain it to the patient's close relatives and obtain their clear consent.

Medical institutions shall be liable for compensation if medical personnel fail to fulfill the obligations stipulated in the preceding paragraph and cause damage to patients.