Incorruptibility, the preservation of a deceased person's body from decay, is a sign considered by the Catholic Church in the canonization process. It's not a requirement for sainthood, but it serves as a noteworthy piece of evidence of holiness during the lengthy Church investigation. The incorruptibility itself doesn't automatically lead to sainthood; it's just one factor among many. A thorough examination of the body is part of the recognized stage of the process. Ultimately, a multitude of factors, including a compelling body of evidence of holiness and miracles attributed to the deceased, are reviewed before a declaration by the Pope affirming sainthood. Incorruptibility, therefore, acts as a supporting piece of evidence within the overall assessment.