Urolithiasis affects 5-15 percent of the world's population, and the recurrence rate of the disease is close to 50 percent. There are different types of stones: calcium stones, of which the most common type is calcium oxalate stones, as well as uric acid stones, struvite, cystine and more. As the concentration of dissolved salt in the urine increases, crystals begin to form and stone formation depends on the amount of urine and the presence of factors that inhibit crystallization. What are uric acid urinary stones? Urine contains different types of minerals and soluble salts. When your urine contains too many minerals and salts, it can cause stones to form in the urinary tract and kidneys. The types of kidney stones can vary from small stones to larger stones that even fill the hollow internal structures of the kidney. Some stones remain in the kidney and do not cause problems. Sometimes, kidney stones can move through the urethra and the tube between the kidney and bladder. If the stone reaches the bladder, it can be passed out of the body through urine. What you read in this article Causes of uric acid stone formation Symptoms of uric acid kidney stones Methods of detecting the presence of kidney stones Uric acid kidney stone diet Removing uric acid kidney stones Prevention of uric acid kidney stones If a stone gets stuck in the urethra, it blocks the flow of urine from the kidney and causes pain. Uric acid kidney stones make up only 5% of kidney stones. Uric acid is an excess product that results from the normal functioning of the body; But when there is too much of this substance in the urine, it can cause uric acid stones. People who eat a high protein diet may be at risk of developing uric acid stones. Causes of uric acid stone formation Unlike calcium stones, in a significant number of which no specific cause can be determined by examination, if we do an examination in patients who have uric acid stones, a cause will be found in most cases. The most important causes of uric acid stone formation are as follows: Small urine volume A diet rich in animal protein Metabolic disorders that lead to large amounts of uric acid entering the urine. Some diseases that cause the formation of uric acid stones, the most important of them are: Gout is caused by excessive protein in the bloodstream. Type 2 diabetes: These patients have highly acidic urine, and uric acid stones are easily formed in acidic urine. Chronic diarrhea Consumption of alcoholic beverages that cause the formation of large amounts of uric acid in the urine. Some types of anemia Cancers Lead poisoning, such as battery workers. Not eating for a long time Some hereditary factors Decreased urinary citrate Symptoms of uric acid kidney stones Signs and symptoms of uric acid kidney stones are not significantly different from other types of kidney stones. They include: Back pain or back pain Pain when urinating Urinary transfer problem Constant need to urinate Abnormal urine volume in the form of frequent urination or low urine output Blood in the urine (hematuria) Fever, nausea or vomiting may be present. There is also an increased risk of urinary tract infections (UTIs). Most of the signs and symptoms overlap with those of kidney stones. In addition, people with high levels of urate (hyperuricemia) may also have symptoms of gout. Methods of detecting the presence of kidney stones To diagnose kidney stones, the doctor uses the following methods: blood test A blood test shows how much calcium or uric acid your blood has and whether it is excessive or not. Blood test results show the overall health of the kidneys and help the doctor check other possible problems in you. Urinalysis A 24-hour urine test shows the presence of excessive stone-forming minerals or low stone-forming prevention substances. To perform this test, your doctor will ask you to collect your urine samples on two consecutive days. ImagingX-rays usually show kidney stones in the urethra. The types of imaging include simple imaging of the lower abdomen (which may not show very small stones) and CTs or high-speed computerized x-rays, which also show small stones. Other methods include ultrasound, intravenous urography (a non-invasive test in which dye is injected into the veins of the arm and then imaged), and CT scan (dye moves along the kidneys and bladder). Uric acid kidney stone dietTo prevent the formation of uric acid stones, stop consuming foods rich in purine such as red meat, other meat products (cod liver oil, sirabi,...), crab and oysters, and follow a healthy diet that contains more fruits and vegetables, whole grains and Dairy products are low-fat, follow. Limit consumption of foods and drinks sweetened with sugar, especially those containing high fructose corn syrup. Avoid using a diet for several days; Because it can increase the amount of uric acid in the blood. Consuming less animal proteins and eating more fruits and vegetables helps to reduce the acidity of urine, and this leads to a reduction in the possibility of kidney stone formation.