Surgical site infection (SSI) occurs at the site of surgery within 1 month of an operation or within 1 year of an operation if a foreign body is implanted as part of the surgery. Most SSIs (about 70%) are superficial infections involving the skin and subcutaneous tissues only. The remaining infections are more serious and can involve tissues under the skin, organs, or implanted material. Hypertrophic scars( HSs) occur frequently on particular sites, including the anterior chest wall. The anterior chest wall is frequently subjected to skin stretching caused by the natural daily movements of the body. Most cases of SSIs and HSs can be prevented by (1) suture technique modification to prevent high stretching tension and ischemia, and (2) appropriate wound care after surgery. It would be useful to avoid subjecting wounded skin to sustained mechanical force, thereby permitting the wound to rest and heal normally.