A suture is a medical term that refers to a stitch or series of stitches used to close a wound or surgical incision. Sutures help to hold the edges of the skin or tissue together, promoting healing and reducing the risk of infection. They can be made from various materials, including absorbable threads that dissolve over time and non-absorbable threads that need to be removed. In surgery, different types of sutures are used depending on the location and nature of the wound. For example, a surgeon may use a continuous suture for a long incision or interrupted sutures for more precise closure. Proper suture technique is essential for optimal healing and minimizing scarring.