This video is unavailable because we were unable to load a message from our sponsors. If you are using ad-blocking software, please disable it and reload the page. Embed Code Restart Playing WATCH MORE VIDEOS FROM THIS EPISODE > Board-certified dermatologist Dr. Ava Shamban explains how a breakdown in connective tissue of the buttocks can cause cellulite to form. Learn the most effective ways to tighten your tush. ShareTweet