Treat diseases, injuries, and deformities by invasive methods, such as manual manipulation or by using instruments and appliances.

Analyze patient's medical history, medication allergies, physical condition, and examination results to verify operation's necessity and to determine best procedure. Prescribe preoperative and postoperative treatments and procedures, such as sedatives, diets, antibiotics, and preparation and treatment of the patient's operative area. Direct and coordinate activities of nurses, assistants, specialists, residents and other medical staff. Examine patient to provide information on medical condition and surgical risk. Follow established surgical techniques during the operation. Operate on patients to correct deformities, repair injuries, prevent and treat diseases, or improve or restore patients' functions. Refer patient to medical specialist or other practitioners when necessary. Conduct research to develop and test surgical techniques that can improve operating procedures and outcomes. Examine instruments, equipment, and operating room to ensure sterility. Manage surgery services, including planning, scheduling and coordination, determination of procedures, and procurement of supplies and equipment. Prepare case histories. Provide consultation and surgical assistance to other physicians and surgeons. Diagnose bodily disorders and orthopedic conditions and provide treatments, such as medicines and surgeries, in clinics, hospital wards, and operating rooms.

Medicine and Dentistry -- Knowledge of the information and techniques needed to diagnose and treat human injuries, diseases, and deformities. This includes symptoms, treatment alternatives, drug properties and interactions, and preventive health-care measures. Biology -- Knowledge of plant and animal organisms, their tissues, cells, functions, interdependencies, and interactions with each other and the environment. Chemistry -- Knowledge of the chemical composition, structure, and properties of substances and of the chemical processes and transformations that they undergo. This includes uses of chemicals and their interactions, danger signs, production techniques, and disposal methods. Administration and Management -- Knowledge of business and management principles involved in strategic planning, resource allocation, human resources modeling, leadership technique, production methods, and coordination of people and resources.

Reading Comprehension -- Understanding written sentences and paragraphs in work related documents. Critical Thinking -- Using logic and reasoning to identify the strengths and weaknesses of alternative solutions, conclusions or approaches to problems. Judgment and Decision Making -- Considering the relative costs and benefits of potential actions to choose the most appropriate one. Systems Evaluation -- Identifying measures or indicators of system performance and the actions needed to improve or correct performance, relative to the goals of the system. Management of Personnel Resources -- Motivating, developing, and directing people as they work, identifying the best people for the job. Science -- Using scientific rules and methods to solve problems. Active Listening -- Giving full attention to what other people are saying, taking time to understand the points being made, asking questions as appropriate, and not interrupting at inappropriate times. Operation and Control -- Controlling operations of equipment or systems. Speaking -- Talking to others to convey information effectively. Monitoring -- Monitoring/Assessing performance of yourself, other individuals, or organizations to make improvements or take corrective action.

Manual Dexterity -- The ability to quickly move your hand, your hand together with your arm, or your two hands to grasp, manipulate, or assemble objects. Arm-Hand Steadiness -- The ability to keep your hand and arm steady while moving your arm or while holding your arm and hand in one position. Written Comprehension -- The ability to read and understand information and ideas presented in writing. Oral Expression -- The ability to communicate information and ideas in speaking so others will understand. Problem Sensitivity -- The ability to tell when something is wrong or is likely to go wrong. It does not involve solving the problem, only recognizing there is a problem. Deductive Reasoning -- The ability to apply general rules to specific problems to produce answers that make sense. Inductive Reasoning -- The ability to combine pieces of information to form general rules or conclusions (includes finding a relationship among seemingly unrelated events). Information Ordering -- The ability to arrange things or actions in a certain order or pattern according to a specific rule or set of rules (e.g., patterns of numbers, letters, words, pictures, mathematical operations). Finger Dexterity -- The ability to make precisely coordinated movements of the fingers of one or both hands to grasp, manipulate, or assemble very small objects. Memorization -- The ability to remember information such as words, numbers, pictures, and procedures.

Getting Information -- Observing, receiving, and otherwise obtaining information from all relevant sources. Making Decisions and Solving Problems -- Analyzing information and evaluating results to choose the best solution and solve problems. Analyzing Data or Information -- Identifying the underlying principles, reasons, or facts of information by breaking down information or data into separate parts. Identifying Objects, Actions, and Events -- Identifying information by categorizing, estimating, recognizing differences or similarities, and detecting changes in circumstances or events. Assisting and Caring for Others -- Providing personal assistance, medical attention, emotional support, or other personal care to others such as coworkers, customers, or patients. Inspecting Equipment, Structures, or Material -- Inspecting equipment, structures, or materials to identify the cause of errors or other problems or defects. Evaluating Information to Determine Compliance with Standards -- Using relevant information and individual judgment to determine whether events or processes comply with laws, regulations, or standards. Updating and Using Relevant Knowledge -- Keeping up-to-date technically and applying new knowledge to your job. Handling and Moving Objects -- Using hands and arms in handling, installing, positioning, and moving materials, and manipulating things. Performing General Physical Activities -- Performing physical activities that require considerable use of your arms and legs and moving your whole body, such as climbing, lifting, balancing, walking, stooping, and handling of materials.