What is Urinary Tract Stone Disease?

Urinary tract stone disease occurs when certain substances in the urine crystallize and harden, forming stones in the kidneys or urinary tract.

In simple terms: Salts and minerals in the urine precipitate, starting like sand and turning into stones over time. Stones can form in the following areas:

• Kidney stones

• Ureter stones (the tube between the kidney and bladder)

• Bladder stones

• Urethral stones (the exit channel for urine)

How Do Urinary Tract Stones Form?

Normally, substances in the urine are dissolved in water. However, in some cases, the urine becomes concentrated, and these substances begin to precipitate.

The stone formation process:

1. Low water intake -> Urine becomes concentrated

2. Minerals precipitate

3. Crystals combine

4. A stone forms

The most important cause: Inadequate fluid consumption.

Risk Factors for Stone Disease

The most significant factors that increase stone formation:

• Low water intake

• High salt consumption

• Excessive meat/protein consumption

• Obesity

• Sedentary lifestyle

• Family history of stones

• Hot climates

• Diabetes

• Certain intestinal diseases

Patient Summary: The biggest risks are low water intake and high salt consumption.

Why is Pain So Severe in Kidney and Ureter Stones? (What is Colic Pain?)

The pain seen in kidney and especially ureter stones is usually "colic-type pain."

What does colic pain mean?

• Starts suddenly

• Comes in waves

• Fluctuates in intensity

• Causes extreme restlessness

• May be accompanied by nausea, vomiting, and sweating

In patient terms: "It comes and goes, but when it hits, it is unbearable."

Why does it happen?

When a stone falls into the ureter:

• The ureter contracts

• It tries to push the stone out

• The channel stretches

• Pressure increases The cause of the pain is not the stone itself, but the ureter's intense contractions while trying to expel the stone.

Symptoms Based on Stone Location

Kidney Stone:

• Dull back pain

• Sometimes no symptoms at all

Ureter Stone (The most painful):

• Sudden, severe flank pain

• Pain radiating to the groin

• Nausea and vomiting

• Blood in the urine

Bladder Stone:

• Frequent urination

• Interruption of the urinary stream

• Lower abdominal pain

Urethral Stone:

• Inability to urinate

• Sensation of sudden blockage

• This is a medical emergency

3 Main Factors Determining Stone Treatment

Not every stone is treated the same way. The 3 factors that determine treatment are:

1. Stone Location: Is it in the kidney, ureter, or bladder?

2. Stone Size:

• 3 to 5 mm: May pass spontaneously

• 5 to 10 mm: Difficult, but may still pass

• Over 10 mm: Usually requires intervention

• Over 20 mm: Large stone; surgery usually required

1. Stone Type:

• Calcium Oxalate: Most common

• Uric Acid: Sometimes can be dissolved with medication

• Struvite: Related to infections

• Cystine: Very hard, difficult to break

Diagnostic Procedures

• Ultrasound: First-line tool; no radiation.

• Low-Dose CT (Tomography): The gold standard; shows the stone's location and size clearly.

• Urinalysis: Checks for blood or infection.

• Blood Tests: Checks kidney function, calcium, and uric acid levels.

Treatment Options for Kidney and Ureter Stones

The goals are to relieve pain, remove the stone, and resolve the issue without damaging the kidney.

1. Spontaneous Passage (Medical Observation)

• Typically for stones under 5 mm when no infection is present.

• Method: Plenty of water, painkillers, and medications that relax the ureter.

• Pros: No surgery.

• Cons: Uncertain timeline; colic pain may continue.

1. ESWL (Shock Wave Lithotripsy)

• Stones are broken by sound waves sent from outside the body.

• Suitable for kidney stones under 1 to 2 cm that are not too hard.

• Pros: No anesthesia, no incisions.

• Cons: Not all stones break; may require multiple sessions.

1. URS (Ureteroscopy / Closed Stone Surgery)

• Most common method for ureter stones.

• Method: Entered through the urinary tract; the stone is broken with a laser and removed.

• Pros: Stone is cleared immediately; very high success rate.

1. RIRS (Retrograde Intrarenal Surgery)

• Modern method for stones inside the kidney.

• Method: Thin camera enters the kidney; stone is broken with a laser.

• Pros: No incisions.

1. PNL (Percutaneous Nephrolithotomy / Closed Kidney Surgery)

• Gold standard for large stones.

• Method: A small hole in the back allows direct entry into the kidney.

• Pros: Large stones removed in a single session.

Do Stones Recur?

Yes. Stone disease has a tendency to recur. Statistics: Approximately 50% of first-time stone formers will develop another stone within 5 years.

How to Prevent Recurrence?

• Golden Rule: Drink plenty of water (at least 2.5 to 3 liters per day; urine should be light in color).

• Restrict Salt: Reduce intake of processed foods.

• Balance Protein: Avoid excessive meat consumption.

• Reduce Carbonated and Sugary Drinks.

• Stay Active: A sedentary lifestyle increases stone risk.

• Get a Stone Analysis: Knowing the stone type allows for a personalized prevention plan.

Closing Note: Urinary incontinence (mentioned previously) and stone disease are treatable conditions. They are not natural consequences of aging. Proper diagnosis and treatment are essential.