Tooth 9 extracted 1 week ago: white stuff has been here since the day of procedure. (photo)

Hi:From the photo you provided, everything looks normal.  Do not remove the white stuff, it is the gum tissue that will turn pink as it heals and matures.  If you have any concerns please contact your dentist.Best,Dr. Maddahi

Hello, well that white stuff is part of the healing process of your gum, its in fact your gum, please don't touch it, it will change colors in a few days, as the tissue matures and heals. Hope this helps, good luck