Leech therapy is very effective for improving blood circulation which has primary importance for erectile function. The practice has shown that ED is noticeably improved or fully treated with LT.
This is thanks to hirudin (natural anti-coagulant) together with other leech saliva components that clean blood by dissolving clots, thrombus, reducing atherosclerotic plaques, lowering high cholesterol, etc. Usually, the result is evident after the first few sessions.