Shanghai No.9 Hospital has many departments for suturing wounds. Chest is thoracic surgery, abdomen is general surgery, limbs are orthopedics, denomination is plastic surgery, eyes are ophthalmology, cheeks and jaws are craniofacial surgery, nose and ears are otolaryngology. If the need for plastic and cosmetic suture is not emphasized, the triage nurse will find the corresponding department for suture according to the location. The purpose of everyone coming to the Ninth Hospital is to prevent scars. Plastic surgery has a set of comprehensive treatment measures for scars after wounds, while other departments mainly suture wounds and are not familiar with the better methods to prevent scars.