That has happened to be and it is normal. The sutures start to dissolve and the little ends and knot can poke through the skin. I was being poked by mine last time so I just took some tweezers and did not even have to pull very hard and it came right out.

I didn't have stitches ... My surgeon used surgical glue which so far has done its job !

Did not happened to me but to my friend, she was told that she was allergic to the type of sutures. Hope you are feeling better.