Certain fly larvae can infest corpses or the wounds of live hosts. Those wh
ich are least invasive on live hosts have been used therapeutically, to rem
ove dead tissue from wounds, and promote healing. This medicinal use of mag
gots is increasing around the world, due to its efficacy, safety and simpli
city. Given our low cultural esteem for maggots, the increasing use and pop
ularity of maggot therapy is evidence of its utility. Maggot therapy has su
ccessfully treated many types of chronic wounds, but much clinical and basi
c research is needed still. In this review, the biology of myiasis and the
history of maggot therapy are presented, the current status of our understa
nding and clinical use of medicinal maggots is discussed, and opportunities
for future research and applications are proposed.