common? no. can it happen? yes. if the person who sutured you did not use absorbable sutures (supposed to dissolve in a few weeks to a month or s0) and used cotton or regular suture material this can occur. sometimes fibers from clothing can be trapped under the skin if your wound was not carefully irrigated. why it took ten years i can't say. since i have no way of seeing this string-like substance to be sure of its nature or confirming that it is old suture material.
is it commen to pull 1 inch pieces of "string" out of your face years after having stiches? . had a bad accident about ten years ago that required many stiches in my face. over the last few years i have pulled a string like substance out of my face. is this commen?