What a stone feels like
A stone moving down the ureter causes severe, wave-like pain in the flank or lower abdomen, often radiating to the groin, sometimes with nausea, vomiting or blood in the urine. The pain of a stuck stone is among the most intense people experience — but most small stones pass on their own with medicines and hydration.
When a stone is dangerous
Stone pain with fever and chills means an infected, blocked kidney — a genuine emergency. Similarly, a stone in a single functioning kidney, or stones causing complete blockage, need urgent treatment. Severe uncontrolled pain or persistent vomiting also justify immediate care.
How stones are treated today
Treatment depends on size and position. Small stones: medicines and waiting. Larger or stuck stones: endoscopic procedures — a fine telescope passed through natural passages to break the stone with laser — with no external cuts and short hospital stays. Open stone surgery is now rare.
Prevention is the real treatment
About half of stone formers develop another stone within years unless prevention is taken seriously. The cornerstone is fluid — enough to keep urine pale through the day, roughly 2–2.5 litres of urine output. Dietary guidance follows your stone type: salt moderation helps nearly everyone; specific advice on calcium, oxalate and protein follows stone analysis. If you have passed or passed-out a stone, ask about metabolic evaluation — finding out why you form stones is the only way to stop the cycle.
One practical tip
If you are a stone former, keep a bottle with you and finish it by midday, refill and finish by evening. The pale-urine rule is simple, free, and more powerful than any medicine.