medicinal leech

Medicinal leeches are being highlighted for their role in reattachment surgery, where they help restore blood flow to a severed finger by drawing off pooled blood and stimulating circulation. The technique, long used in microsurgery, is drawing renewed interest online as a striking example of old medical tools finding modern uses.

Medical leech therapy, once an ancient practice, is being used today in reconstructive and plastic surgery to improve blood flow in reattached limbs and skin grafts. Medicinal leeches, approved as medical devices, release anticoagulants through their saliva that help prevent blood clots and venous congestion. Practitioners also explore it for osteoarthritis pain relief, while researchers continue to assess its clinical benefits and risks.