Watch this instructional medical how-to video to learn how to wrap a bandage correctly. A circular wrap is used to wrap a small body region. First, three to four inches of the appropriate sized gauze wrap is unrolled and placed flat. It is held in place with the thumb of one hand as the bandage is rolled around to provide at least two overlapping layers of bandage. The excess bandage roll is trimmed and the gauze is secured in place with a strip of tape.