While prostatic calculi are said to be overwhelmingly common, it is, however, rare to find patientswith exceptionally large calculi that would cause urinary tract obstruction. Indeed, prostatic calculigenerally remain asymptomatic in almost all men, because of its non-obstructive nature. Presentedhere is the case of a 48-year-old male with one giant prostatic calculus that replaced almost the entiregland. He underwent endoscopic and open surgical management for the stones.