Some of my pics come out every white how do i fix

If they are white that means they are getting over exposed. You may have your camera in a manual mode that is set to overexpose the pictures. You can set it in an automatic mode to take care of this. The other possibility is that you have a exposure adustment that can be set at either + for brighter or - for darker. It should be set at 0. Sometimes this is a EF option on the camera. Hopefully this helps.