After knee joint replacement surgery, the knee usually looks a little more swollen than before, and this is completely normal in most cases. There are several reasons for this state:

Firstly, after joint replacement, there is no more natural cartilage in the knee and the natural way of entering and leaving the joint fluid has been changed or replaced with metal. Therefore, some swelling is normal.

Secondly, the surgical tissues undergo repair changes and the formation of scar tissue. These tissues may cause closure or change the direction of fluid flow in the joint.

Third, in general, the knee that has undergone joint replacement usually has a puffy and slightly swollen appearance. If the swelling is mild or constant and is not accompanied by pain or other symptoms, there is no need to worry.

But if the swelling increases suddenly and is accompanied by pain, redness, fever, chills, weight loss or night sweats, it should be checked immediately, because it may be a sign of infection or abnormal inflammation. Otherwise, mild or persistent swelling that persists even up to a year after surgery is normal and should not cause concern or anxiety.