Sutures are medical stitches used to close wounds or surgical incisions. They help to hold the edges of the skin or tissue together, promoting healing and reducing the risk of infection. Sutures can be made from various materials, including silk, nylon, or absorbable threads that dissolve over time. There are different types of sutures, such as interrupted and continuous, each serving specific purposes. The choice of suture depends on factors like the location of the wound and the type of tissue involved. Proper suturing techniques are essential for optimal healing and minimizing scarring.