Britannica Sources used in this answer

Why do the skin diseases called leprosy in the Bible not necessarily mean Hansen’s disease?

Created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.

The term "leprosy" as used in the Bible—referring to both the tzaraath of the Hebrew Bible and the lepra of the Greek New Testament—does not necessarily correspond to the modern medical definition of Hansen’s disease.

The biblical descriptions of these conditions are not clinically recognizable in a way that aligns with the specific infectious disease caused by Mycobacterium leprae. Instead, scholars and medical historians generally conclude that the term was used as a broad, non-specific label for a variety of severe, chronic skin conditions prevalent at the time.1