}Medical helminthology is a branch of Parasitology that applies for the study of a group of a vastly numerous and different worms that are parasitic to humans and animals. They are grouped in two main phyla which are divided as usual to classes, subclasses, families, genera and species.
}1- Phylum Platyhelminths, which includes two medically important classes; Trematoda and Cestoda.
}2- Phylum Nemathelminths, which includes the medically important class Nematoda.
}