All organs in the human body may suffer from hydatid disease. Urinary
tract involvement in hydatid disease is not common including only 2-4%
of cases. The kidneys are the most commonly affected organs in the ur
inary tract, with other organs rarely affected alone. We report a case
of hydatid disease presented with acute urinary retention due to retr
ovesical hydatid cyst, together with a communicating renal hydatid cys
t and a cyst in the right gluteal muscle.