Surgery is a specialty in medicine that treats diseases or wounds with manual and instrument surgery. A surgeon can be a doctor, dentist, or veterinarian who specializes in the field of surgery. Today's term specialist is more commonly referred to as a specialist.

Surgery itself is performed for several reasons such as diagnostic (biopsy, exploratory laparotomy), curative (excision of the tumor mass, removal of the inflamed appendix), reparative (repairing multiple wounds), reconstruction and palliation. Surgery according to its type is divided into 2, namely major surgery and minor surgery. Major surgery is a surgical procedure that uses general anesthesia / general anesthesia, which is a form of surgery that is often performed. Indications for major surgery include cholecystectomy, nephrectomy, colostomy, hysterectomy, mastectomy, amputation and surgery due to trauma.

Before surgery is done what needs to be done is to prepare the tools that will be used. Before carrying out surgery, it is necessary to have knowledge about the supporting facilities in surgery so that there are no errors in using these tools, because each tool has a specific function.

Instruments are tools including each component, part or equipment that is produced, sold or used as health care and maintenance, restoration, repair, and changes in the structure of body functions. The surgical instrument is an extension of the surgeon's hand. This instrument allows the surgeon to manipulate or cut tissue to give a positive result for the patient.

instruments are usually collected individually for a surgical procedure. This task is time consuming and can lead to errors. To provide an instrument that is routinely used for a particular procedure, the instrument is organized into a set called a set. In the surgery specialization has a series of sets designed according to the basic procedures of each surgery.

Every surgical instrument must be used for its intended purpose in an appropriate manner and if it is used or handled incorrectly it could injure the patient or members of the surgical team.