Hello,

Last Tuesday, I was eating some potato chips and one felt like it cut
back part of my mouth/gum on the left side, right behind the last
molar. it bleed a very small amount and was very sore.  Saw a very
small white area (raised a little bit) when I felt the "cut" last
week. It is soft (not a hard tissue) and is a little pain full - it
feels like Canker sore.

Does this sound like Canker Sore?

Thanks!

Robert