The term "written consent" refers to a legal document that is signed by an individual or party, giving their permission for something to happen. This can be in relation to various activities such as medical treatment, research participation, or the use of personal information. The written consent serves as evidence that the person has given their approval and provides protection for both the individual and the entity seeking consent. It is usually a formal document that outlines the specifics of what is being agreed upon, including any potential risks or benefits involved.