Varies. A lot of times, self-dissolving sutures are used, so they will not need to be taken out. Otherwise, it would likely be a week later.
Depends. If the stitches need to be removed, your doctor will probably remove them a week after surgery. However, often times dissolvable stitches are used and these will never need to be removed (they will eventually dissolve on their own and disappear). Ask you doctor what kind of stitches you have an when he will want you to return.