The medicinal leech was once widespread in Britain and Ireland. Their popular use in medicine resulted in a lucrative international market in the 18th and 19th centuries. They seem to have been a ...

In this short film Dr Michael Mosley interviews a surgeon who is pioneering the use of leeches in medical research. He allows a leech to attach to his arm and suck his blood, the mouth of the ...

Ashley Leech is an assistant professor in the Department of Health Policy at the Vanderbilt University School of Medicine. Stephen Morrissey, the interviewer, is the Executive Managing Editor of ...