Ureterolithiasis (Ureteral Stones) Treatment in Malaysia

What is Ureterolithiasis (Ureteral Stones)?

Ureterolithiasis is the presence of a stone within the ureter, the tube that carries urine from the kidney to the bladder. Ureteral stones usually form in the kidney and move into the ureter, where they may lodge and partially or completely block urine flow. Stones vary in size and composition, and their likelihood of passing naturally depends largely on their size and location. Small stones may pass without a procedure, while larger or obstructing stones may require active treatment.

What is the Importance of Timely Treatment?

Timely evaluation helps determine the stone's size, location, degree of obstruction, kidney function, and whether infection is present. While many uncomplicated small ureteral stones can be observed, persistent obstruction, uncontrolled pain, impaired kidney function, or infection may require prompt intervention. An obstructed urinary system with infection or sepsis is a urological emergency and requires urgent drainage, usually with a ureteral stent or percutaneous nephrostomy, followed by definitive stone treatment after the infection resolves.

What are the Common Symptoms of Ureterolithiasis (Ureteral Stones)?

• Sudden, severe pain in the side or back
• Pain radiating toward the lower abdomen, groin, or genital area
• Pain that comes and goes in waves
• Blood in the urine
• Pain or burning during urination
• Increased urinary frequency or urgency
• Nausea and vomiting
• Difficulty passing urine or passing only a small amount
• Cloudy or foul-smelling urine, particularly with infection
• Fever and chills when infection is present
• Restlessness or inability to find a comfortable position

Causes and Risk Factors of Ureterolithiasis (Ureteral Stones)

Causes

• High concentrations of stone-forming substances in urine, including calcium, oxalate, uric acid, or phosphate
• Low urine volume and dehydration
• Calcium oxalate or calcium phosphate stone formation
• Uric acid stones
• Infection-related struvite stones
• Cystine stones associated with inherited disorders
• Metabolic abnormalities affecting urinary mineral balance
• Certain medications or supplements
• Conditions that increase urinary calcium, oxalate, uric acid, or other stone-forming substances

Risk Factors

• Previous kidney or ureteral stones
• Family history of kidney stones
• Inadequate fluid intake or recurrent dehydration
• Hot climates or occupations involving substantial fluid loss
• High dietary sodium intake
• High intake of animal protein in susceptible individuals
• Obesity and metabolic disorders
• Gout or hyperuricemia
• Recurrent urinary tract infections
• Hyperparathyroidism and other metabolic conditions
• Certain gastrointestinal diseases or intestinal surgery
• Genetic disorders such as cystinuria

Latest Research and Technologies in the Treatment of Ureterolithiasis (Ureteral Stones) in Malaysia

• Modern ureteral stone management focuses on accurate diagnosis and selecting treatment based on stone size, location, composition, and the patient's clinical condition. Ultrasound and non-contrast CT help identify stones and assess obstruction, while ureteroscopy allows stones to be removed or fragmented using laser technology. Holmium laser remains an established option, and thulium fibre laser is an additional technology supported by current clinical guidance. Recent research continues to compare these laser systems, with potential differences in stone clearance and procedure time still being evaluated. Shock-wave lithotripsy remains an option for appropriately selected stones, while ureteral stents and percutaneous nephrostomy can restore urine drainage when necessary. Equipment and procedure availability vary between Malaysian hospitals, so patients should confirm the options offered by their treating centre.