Leeches are small worms and have have tiny rows of teeth.
The leeches are applied on the affected area of patient and pierce their teeth on person’s skin.
The Enzymes in saliva of leech enter the blood of patient 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 The leeches are then allowed to extract blood, for 20 to 45 minutes at a time.
Bloodletting also stimulates the spleen to produce anti-toxic substances that help to stimulate the immune system. Toxins are neutralized, enabling radical cures in many blood-borne disorders.
Pitta is produced from the disintegrated red blood cells in the liver. So Pitta & Blood have a close relationship.
An increase in pitta may go into the blood causing toxicity, and thus pitta related disorders cured through Leech therapy.