Method for enhancing wound healing by administrating adenine

A method for enhancing healing of a wound in a subject in need thereof, comprising administering to the subject a composition comprising adenine and/or a pharmaceutically acceptable salt thereof in an effective amount to enhance the healing of the wound in the subject, wherein the adenine and/or the pharmaceutically acceptable salt thereof in the composition is in an amount of between 0.0001% and 0.05% by weight, provided that an amount of 0.05% is excluded, and wherein the adenine and/or the pharmaceutically acceptable salt thereof serves as the only active ingredient for the healing of the wound in the composition, and the wound is a chronic wound.