My seven year old son had surgery almost one year ago to repair an umbilical hernia. i took him to his 7 year checkup and the doctor pointed out that there is still a stitch undissolved in there. i was looking at it when he was getting ready for his shower and the damn thing is a hard as a staple. now I am pretty certain that they did not use staples but i am calling up to doc tomorrow to see if we can get it removed. it looks painful and i am just anxious that it will pop thru the skin and give him an infection. am i doing the right thing?