DIEP flap abdominal scar itching after 8-9 years post-op. How can I stop it?

I had a DIEP flap recon. in 2006. For the last year or so, I have been getting itching under the abdominal scar line.The perm.stitches are v.near the surface on both sides. Do you think it possible that after 9 yrs my body is trying to reject the stitches and having them removed could solve the issue ? I'm not itching anywhere else There is no redness on the surface, or discharge,Very annoying:-( Any help would be SO much appreciated! Thank-you!