Tissue adhesive, also known as surgical glue or tissue glue, is a medical adhesive used to close wounds and incisions. It is a type of cyanoacrylate liquid polymer that is applied to the edges of the injury or incision and allowed to dry, creating a seal that holds the tissue together. Tissue adhesives are commonly used in place of traditional sutures or staples for small, superficial wounds or incisions, and can reduce the risk of infection, minimize scarring, and improve healing times. They may also be used with sutures or staples for larger or more complex wounds.