A surgical knife, also known as a scalpel, is a small, sharp instrument used by surgeons during operations. It is designed for precision cutting of skin and other tissues. Surgical knives come in various shapes and sizes, allowing surgeons to choose the best tool for specific procedures. Typically made from stainless steel, surgical knives are sterilized before use to prevent infections. They can be disposable or reusable, with some models featuring replaceable blades. The design of a surgical knife ensures that it can make clean incisions, which is crucial for successful surgical outcomes and patient recovery.