The surgical signature must be an immediate relative, and the son-in-law is not an immediate relative.

It means that doctors use medical devices to treat patients' bodies. The operation of knives, scissors, needles and other instruments in the human body to maintain the health of patients. It is the main treatment of surgery, commonly known as "surgery". The purpose is to treat or diagnose diseases, such as removing diseased tissues, repairing injuries, transplanting organs and improving the function and shape of the body. Early operation is limited to simple techniques, such as abscess drainage, tumor resection, trauma suture and so on. Therefore, surgery is an operation that destroys tissue integrity (incision) or repairs damaged tissue (suture). With the development of surgery, the field of surgery is constantly expanding, and surgery can be performed in any part of the human body. The applied instruments are constantly updated, such as scalpels, such as electrotome, microwave knife, ultrasonic knife and laser knife. Therefore, surgery has a broader meaning.