Kidney Stone
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Kidney Stone

Urology

Kidney stones are common in the urinary system and are formed by hardened substances such as minerals and salts in the kidneys. These stones may remain in the kidneys or into the urinary tract, causing varying degrees of discomfort and complications.

Symptoms

The symptoms of kidney stones vary depending on their size, location, and movement. Common symptoms include:

  • Severe pain in the lower back, side, or abdomen, which may radiate to the groin.
  • Hematuria (blood in the urine) makes the urine appear pink, red, or brown.
  • Pain or burning sensation while urinating.
  • Frequent urination or a strong urge to urinate.
  • Nausea and vomiting.
  • Fever and chills if an infection is present.

Causes & Risk Factors

Several factors contribute to kidney stone formation, including:

  • Dietary habits: A high intake of salt, protein, and oxalate-rich foods increases the risk of kidney stones.
  • Dehydration: Insufficient water intake leads to concentrated urine, which promotes stone formation.
  • Genetics: A family history of kidney stones increases susceptibility.
  • Metabolic disorders: Conditions such as hyperuricemia and hyperparathyroidism increase the risk.
  • Obesity: Being overweight is linked to a higher risk of kidney stone formation.

Diagnosis

Doctors use the following methods to diagnose kidney stones:

  • Imaging tests: X-ray, ultrasound, or CT scan to determine the stone's size and location.
  • Urine tests: To check for blood, infection, or mineral components of stones.
  • Blood tests: evaluate kidney function and detect metabolic abnormalities leading to stone formation.

Treatments

Kidney Stone treatment depends on the stone's size, location, and severity of symptoms. Common treatments include:

  • Observation & hydration: Small stones (<5mm) may pass naturally with increased fluid intake.
  • Medication: Pain relievers and drugs that facilitate stone passage.
  • Extracorporeal Shock Wave Lithotripsy (ESWL): Shock waves are used to break stones into smaller pieces for easier passage.
  • Endoscopic surgery: A minimally invasive procedure where a scope is inserted through the urinary tract to remove or break stones.
  • Surgical removal: In severe cases, large or complex stones may require surgical intervention.

FAQ

Drink plenty of water, limit salt and high-oxalate foods, and maintain a healthy weight.
Small stones (<5mm) may pass naturally, but larger stones often require medical intervention.
Yes, kidney stones can recur. Lifestyle and dietary changes can help reduce the risk.
If untreated, kidney stones may lead to urinary tract infections, kidney damage, or urinary obstruction.

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1331, 13th Floor, Central Building, 1-3 Pedder Street, Central, Hong Kong
Mon - Fri 8:30am - 5:30pm
Sat 9:00am - 1:00pm
Sun & Public Holidays Closed
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Sat 9:00am - 1:00pm
Sun & Public Holidays Closed
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Mon - Fri 10:00am - 8:00pm
Sat 10:00am - 4:00pm
Sun & Public Holidays Closed
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