Leeches Farmed For Medical Therapy

SURABAYA, INDONESIA - APRIL 15: A patient undertakes a treatment using leeches (Hirudo medicinalis) in a clinic on April 15, 2014 in Surabaya, Indonesia. Hirudo medicinalis is one of the species of leeches used for medicinal therapy. Leech therapy has been used to treat arthritis, vascular diseases, heart diseases, hypertension and pneumonia amongst many others. FDA approved the medicinal use of leeches in 2004 to drain pooled blood after surgery. (Photo by Robertus Pudyanto/Getty Images)