By far the best way to insert a breast implant is under the chest (pectoral) muscle. This technique gives a more natural look and makes it easier to breast feed after surgery if a patient desires to do so. The risk of capsular contracture (scar tissue) is also lower when implants are placed under the muscle compared to over the muscle. The interpretation of mammograms is more difficult when implants are on top of the chest muscle, yet another reason to avoid this location.