Take the Kidney Stone Quiz
Kidney stones are one of the most common problems of the urinary tract—and one of the most painful disorders. How much do you know about kidney stones? Try your hand at this quiz, based on information from the National Institute of Diabetes and Digestive and Kidney Diseases.
1. Most kidney stones pass through a person's urinary tract without any medical intervention.
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If the crystals that form the stones remain tiny enough, they can pass through without even being noticed.
2. Anyone can develop kidney stones.
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More men tend to develop stones than women, but the number of women who get kidney stones has been increasing. Whites are more prone to kidney stones than are African-Americans, Hispanics, and Asians. The prevalence of kidney stones rises dramatically as men enter their 40s and continues to rise into their 70s. For women, the prevalence of kidney stones peaks in their 50s. Kidney stones also tend to run in families. Once a person gets more than one stone, he or she is more likely to develop others.
3. A kidney stone forms from chemicals that the body is trying to get rid of.
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The most common type of stone contains calcium in combination with either oxalate or phosphate. These chemicals are part of a person's normal diet and make up important parts of the body, such as bones and muscles.
4. If you have had gallstones, you're likely to get kidney stones, as well.
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Gallstones and kidney stones are not related. They form in different areas of the body. If a person has a gallstone, he or she is not necessarily more likely to develop kidney stones.
5. A urinary tract infection can put you at risk for developing kidney stones.
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Kidney disorders such as malformations or obstructions, and metabolic disorders such as hyperparathyroidism are also linked to stone formation. Genetic predisposition also plays a role. In addition, more than 70 percent of people with a rare hereditary disease called renal tubular acidosis develop kidney stones.
6. The pain from a kidney stone comes on gradually, growing more and more intense.
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The pain often begins suddenly, when a stone moves in the urinary tract, causing irritation or blockage. Typically, a person feels a sharp, cramping pain the back and side in the area of the kidney or in the lower abdomen. Sometimes nausea and vomiting occur with this pain. Later, the pain may spread to the groin. Change of position doesn't improve the pain.
7. Most kidney stones large enough to cause pain must be removed surgically.
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Fortunately, most stones can be treated without surgery. Most kidney stones can pass through the urinary system with plenty of water (two to three quarts a day) to help move the stone along. In most cases, you can stay home during this process, taking pain medicine as needed. Your doctor will probably ask you to save the passed stone(s) for testing. Other minimally invasive methods are available to treat stones. Surgery is only rarely required.
8. Drinking plenty of water can help prevent the recurrence of kidney stones.
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If you have recurrent stones, you should try to drink enough liquids—water is best—throughout the day to produce at least two quarts of urine in every 24-hour period.
9. Some kidney stones can be removed by using shockwaves.
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Extracorporeal shockwave lithotripsy (ESWL) is the most frequently used surgical procedure for the treatment of kidney stones. ESWL uses shockwaves that are created outside of the body to travel through the skin and body tissues until the waves hit the dense stones. The stones become sand-like and are easily passed through the urinary tract in the urine.
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