There can be several reasons why a surgical scar may itch. When the skin is injured, the nerve endings can become damaged, making them very sensitive and prone to itchiness. Scar itchiness can also occur as a part of the natural healing process, as the body regrows skin cells. Furthermore, it is not uncommon for the body to have an inflammatory response to the surgical trauma, which can result in itching. It is essential to contact your surgeon or dermatologist if the itching is severe or persists for more than a few days, as it could be a sign of an allergic reaction to surgical materials used or an infection starting. In some cases, itching can be a sign of abnormal healing, such as inflammation, redness, or oozing. Nerve endings being severed and cauterized during the surgical process can also result in scar sensitivity and itching, which is a normal part of the healing process. The release of histamine can also cause scar itchiness by activating nerve fibers in the skin that signal the brain there is an itch.