Scatology

Scatology, or coprology, in medicine, biology and paleontology, is the study of feces. In psychology, a scatology is an obsession with excretion or excrement, or the study of such obsessions. In literature, "scatological" commonly describes indecent works that make particular reference to excretion or excrement, as well as to toilet humour. Scatology is not to be confused with eschatology, the study of the end of the world.