leech on the glass. bloodsucking . subclass of ringworms from the belt-type class. hirudotherapy

aid alternative ancient animal annelid annelida anxiety belttype blood bloodsucking care class closed dangerous disease disgust doctor earthworms fluke glass healing health healthy heparin hermaphrodite hirudinea hirudotherapy hospital invertebrate jar leech leeching medical medicinal medicine nature parasite parasitic pot relief ricefieldcrabs ringworms science skin subclass suck sucker sucking tentacle therapy water wet worm zoology