I am wondering: is it possible to get canker sores in the back of the throat? I've had canker sores before around the gums but never in the back of my throat. There are two white bumps in the back of my throat, and the surrounding area is a little red. One of the white bumps is barely visible, because it is behind one of the ridges in my throat. They are causing my throat to be sore. I've had sore throats before, but it was many years ago. I've never looked in the back of my throat when I've had a sore throat before, so I'm not sure if the white bumps are normal. Honestly, they look like pimples you get on your face right before they pop. The first one showed up 2 or 3 days ago and the second one showed up a day after the first.