Cauterization is an ancient medical practice involving burning the body to remove or close off a body part. It was commonly used among early Mesopotamian, Egyptian, Greek, and Mayan civilizations. In Unani medicine, cauterization is considered an indispensable regimen known as Amle-Kai. The instrument used should ideally be made of gold and applied superficially under direct observation, or deeper within the body using a speculum coated in talcum powder or paste to protect surrounding tissues from damage during treatment, especially for issues like hemorrhaging.