Shoulder arthroscopy is performed by opening 4-5 small holes in the shoulder and extending surgical instruments through the small holes to the inside of the joint. Generally, there are several conditions that need attention for patients after shoulder arthroscopy: First, patients who need external fixation after surgery should observe the skin at the fixation every day to prevent jamming and damage to the skin, which can easily cause skin infection. Second, the wounds left after surgery must be disinfected and changed regularly to prevent bacteria from entering the inside of the joint through the wounds and causing intra-articular infection or even septicemia. Third, after surgery, observe whether there is numbness in the arm, decreased sensory ability and motor ability. If this occurs, you should communicate with the surgeon in a timely manner to prevent injuries that occur because of the surgery from being overlooked. Fourth, for patients with fixed shoulder joints, they should actively exercise other joints and muscles other than the shoulder joint to prevent the occurrence of dysfunction of other joints and muscles. Transient swelling and pain in the joint that occurs after surgery are generally common. If symptoms other than swelling and pain occur, you should immediately communicate with your surgeon.