A kidney stone, also called renal calculus or nephrolith, is a solid piece of material. It forms in kidney from the chemicals in urine, including calcium, uric acid, phosphorus and so on. Kidney stones with small size can leave the body through urine tract without causing any annoying symptoms. However, if the size reaches at least 3 millimeters (0.12 in), they will block the ureter, causing pain to sufferers.

Symptoms of kidney stones
There are many symptoms that help you notice the development of kidney stones, including:
-- Frequent desire to urinate
-- Fever and excessive sweating
-- Nausea, vomiting
-- Painful urination
-- Blood in the urine

Diet for Kidney Stones
-- Food that is rich in fiber helps to eliminate excess calcium and oxalate from the urine. You can obtain fiber from foods such as bran flakes.
-- Carrots contain vitamin A which is beneficial for the health of the kidneys. Other foods rich in vitamin A include pumpkin and sweet potatoes.
-- Chicken is an excellent source of the B vitamins which are helpful in preventing kidney stones. These vitamins restrict oxalate buildup in the body.
-- Before you decide to make any changes to your diet, do consult your doctor however. It would in fact be best to formulate a personalized diet plan with your health care provider and a nutritionist, as dietary modifications are crucial to the outcome, and are entirely dependent on the nature of the kidney stone problem.

标题加粗  Suggestion for Kidney Stones
Some doctors advise individuals with kidney stones to use a mesh strainer while urinating. This will help to catch the stone and enable your doctor to analyze it. This is very helpful in determining the type of stone and will enable your doctor to decide on the best course of treatment.