A stone analysis test is performed to determine the composition of stones found in the urinary tract, gallbladder, or other body locations. This helps doctors understand the cause of stone formation and recommend preventive measures.
A doctor may recommend a stone analysis if a patient has:
✅ Kidney stones (nephrolithiasis) – Pain, blood in urine, or blockage
✅ Gallstones (cholelithiasis) – Abdominal pain, nausea, and jaundice
✅ Bladder stones – Urinary problems, frequent infections
✅ Repeated stone formation – To find the underlying cause and prevent recurrence
The most common types of stones include:
| Stone Type | Composition | Common Causes |
|---|---|---|
| Calcium Oxalate | Calcium + Oxalate | Dehydration, high oxalate diet, low citrate levels |
| Calcium Phosphate | Calcium + Phosphate | Alkaline urine, kidney disease |
| Uric Acid Stones | Uric Acid | High purine diet (red meat, alcohol), gout, dehydration |
| Struvite Stones | Magnesium, Ammonium, Phosphate | Urinary tract infections (UTIs) |
| Cystine Stones | Cystine (amino acid) | Genetic disorder (Cystinuria) |
Stone Collection:
Laboratory Analysis:
| Result | Meaning & Prevention |
|---|---|
| Calcium Oxalate | Reduce oxalate-rich foods (spinach, nuts), drink more water. |
| Calcium Phosphate | Treat kidney disease, limit high phosphate foods. |
| Uric Acid Stones | Avoid purine-rich foods (meat, alcohol), take alkalizing medications. |
| Struvite Stones | Treat UTIs, may need surgical removal. |
| Cystine Stones | Genetic condition; drink more fluids and take medications. |
💧 Drink Plenty of Water (2.5–3 liters daily)
🍎 Balanced Diet (low salt, low oxalate for kidney stones)
🚫 Limit Red Meat & Alcohol (for uric acid stones)
💊 Medications (to prevent recurrence, based on stone type)