Humans aren't typically infected by the animal version. Instead, "bladder worm" often refers to Urinary Schistosomiasis , caused by Schistosoma haematobium . These worms live in the blood vessels surrounding the bladder.
The term "bladder worm" is actually used to describe a few different things depending on who—or what—is infected. bladder worm
Many infections are "silent" and show no symptoms at first. However, as the parasite establishes itself, you might notice: Humans aren't typically infected by the animal version