Once widespread in the UK, the medicinal leech is now rare due mainly to habitat loss and historic collecting for medical use. In Ireland, the leech was driven to extinction in the 19th century.

Carl Peters-Bond says the leech is "starved" for six to nine months before it is used for medical purposes "The leech will attach and that action is drawing the blood through the area that is ...

There were no further medical consultations. It is true that the lying down time and care of dressings occurred only for the leech therapy. We also assume a relevant unspecific active component ...