kidney stone

Kidney stone

Kidney stones form when your urine contains more crystal-forming substances — such as calcium, oxalate and uric acid — than the fluid in your urine can dilute. At the same time, your urine may lack substances that prevent crystals from sticking together, creating an ideal environment for kidney stones to form

Kidney pain

A kidney stone may not cause symptoms until it moves around within your kidney or passes into your ureter — the tube connecting the kidney and bladder. At that point, you may experience these signs and symptoms:

•  Severe pain in the side and back,
•  below the ribs
• . Pain that radiates to the lower abdomen and groin.

At that point, you may experience these signs and symptoms:

• Severe pain in the side and back, below the ribs.
• Pain that radiates to the lower abdomen and groin.
• Pain that comes in waves and fluctuates in intensity.
• Pain on urination.
• Pink, red or brown urine.
• Cloudy or foul-smelling urine.
• Nausea and vomiting.

Kidney stone diet

• If you've had calcium oxalate stones, you may want to avoid these foods to help reduce the amount of oxalate in your urine: 
• nuts and nut products
•  peanuts—which are legumes
• not nuts are high in oxalate.
•  rhubarb.