Prostatic calculi are tiny stone-like grains that form inside the prostate. Most men never feel them, but when they irritate the gland the clues are steady and specific. The first hint is a deep, dull ache between the legs. It feels like a small rock pressing behind the pubic bone and flares after long sitting or ejaculation. Burning shows up next. It stings at the start of the stream and can linger for a few seconds after you finish. Urgency and frequency team up. You dash every hour, yet only a weak, stop-start trickle comes out. Semen can change. Drops... Learn more