Dead pixels. Those tiny, usually red dots appearing in the same place on all your images can be frustrating. Considering there are tens of millions of pixels that make up your image, it's not surprising that a few of them can be broken. Happens even to brand new fresh out of the box cameras.
What to do? If your camera is under warranty, and you can stand being without it for a few weeks then, by all means, send it back for repair. However, if you're out of your warranty window or you just don't want to part with your new camera, here's a trick to try with your Canon DSLR.
It’s that easy! You should find that you have gotten rid of the dead pixel. If not, you'll need to send your camera to Canon for remapping.