Leeches are part of Raktamokshan Panchkarma Therapy . Its one of the great Panchkarma Therapy. it neutralizes the accumulated pitta toxins of blood. Leeches are applied on  the affected area of patient. Leeches have tiny rows of teeth. They pierce a person’s skin and insert anticoagulants through their saliva. The leeches are then allowed to extract blood, for 20 to 45 minutes at a time.

Enzymes in saliva of leeach (Hirudin) enter the blood which acts as an anti-coagulant. This leech enzyme stays in the blood and do vasodilation and increases the blood supply to the surrounding tissue. This prevent necrosis and expedites the healing.