Wound healing is the natural restorative response to tissue injury. Essential to optimizing surgical procedures and evolving novel techniques, a basic understanding of the basic principles of wound healing is necessary. Types of wound closure are classified as primary, secondary, and tertiary. Primary wound healing refers to those wounds which are immediately closed with direct epithelial/mucosal approximation. Secondary wound healing refers to those wounds that all or a portion are left open to heal, without any attempt at closure. These will heal by granulation, reepithelialization, and wound contraction. Tertiary wound healing refers to wounds closed by delayed primary closure.