Urethral calculi

Urethral stones are urinary system calculi located within the urethra. Urethral stones have two sources: first, stones formed directly within the urethra; second, stones from the upper urinary tract (upper urinary tract and bladder) that pass through the urethra and cause obstruction during their expulsion. 90% of cases occur in males, while females are less prone to the condition due to physiological reasons.