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Medicinal Leech Therapy: Friend or Foe

Leech therapy is the ancient practice of bloodletting or bloodsucking and is considered one of the oldest medical practices known. Its use has spanned centuries and is still used in plastic surgery practices today when performing free flaps and replants. The purpose of this article is to discuss the history of this ancient therapy and to describe the leech and its present indications, complications, contraindications, and techniques.