How come my foot swelling up after orthopedic surgery 2 weeks later?

See your surgeon: Not to sound an alarm, but a sudden increase in swelling 2 weeks after surgery needs to be assessed by the surgeon to prevent any complications from becoming a problem.
See below. If your surgery was on your feet for an orthopedic condition then swelling is not unusual after only 2 weeks.
It really depends- -on what was the surgery done on. Your question is not specific. Could be any where from a hip replacement to an infected nail & all in between. A more description of where & what was done will help you get an answer.