
Kidney stones are small, hard crystals that form in the kidneys or ureter, a tube that connects the kidneys to the bladder. They are one of the most common urinary tract disorders, affecting about 11% of people in their lifetime. While smaller kidney stones may not cause pain or other symptoms, larger stones can be extremely painful as they move through the urinary tract and pass out of the body. This pain is often felt in the lower back, belly, or flank area, and can radiate to the groin. In addition to pain, kidney stones can cause other symptoms such as nausea, vomiting, cloudy or foul-smelling urine, and an increased urge to urinate. While kidney stones can sometimes pass without treatment, they may require medical intervention or even surgery if they become stuck or cause a blockage.
| Characteristics | Values |
|---|---|
| Pain | Kidney stones can cause pain in the lower back, belly, or side (flank pain). The pain can be dull or sharp and severe. It is sometimes called colicky pain because it can get worse in waves. |
| Urinary Issues | Kidney stones can cause an increased urge to urinate, difficulty delaying urination, and incomplete emptying of the bladder. They may also lead to cloudy, discolored, or foul-smelling urine, as well as pain during urination and difficulty passing urine. |
| Nausea and Vomiting | Kidney stones can induce nausea and vomiting, making it challenging for individuals to stay hydrated. |
| Fever and Chills | Kidney stones may be accompanied by fever and chills, indicating a possible infection. |
| Stone Composition | Kidney stones are small, hard crystals or clusters formed from minerals, salts, acids, and other substances in the urine. They can vary in hardness, ranging from crumbly to concrete-like textures, depending on the minerals they contain. |
| Prevalence | Kidney stones affect approximately 11% of people, with a higher prevalence in non-Hispanic white individuals and men in their 30s and 40s. They tend to be more common during the summer months. |
| Treatment | Smaller kidney stones may pass without treatment, while larger or obstructive stones may require procedures to break them up or remove them. Medications, increased water intake, and extracorporeal shockwave lithotripsy can aid in passing the stones. In some cases, surgery may be necessary. |
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What You'll Learn

Kidney stones can cause flank pain
Kidney stones are small, hard deposits made of minerals and salts that form within the kidneys. They are one of the most common urinary tract disorders, affecting about 1 in 10 people during their lifetime. While smaller kidney stones may not cause pain or other symptoms, larger ones can be extremely painful as they move through the urinary tract and out of the body.
The pain associated with kidney stones can be so severe that it causes nausea or vomiting, and it can be hard for patients to stay hydrated. In addition to flank pain, other symptoms of kidney stones include cloudy or foul-smelling urine, pain when urinating, an increased urge to urinate, and fever or chills. These symptoms can help doctors differentiate kidney stones from other causes of flank pain.
Treatment for kidney stones depends on the severity of the symptoms and the size and location of the stones. Smaller stones may pass without any treatment, while larger stones may require medication or a procedure to break them up or remove them. Drinking extra water can also help pass kidney stones. In some cases, surgery may be necessary if the stone cannot pass on its own or is causing a blockage.
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Kidney stones can cause nausea and vomiting
Kidney stones are hard mineral and salt collections that form inside the kidneys. They can cause severe pain and affect more than half a million people in the United States each year. While kidney stones typically cause pain in the back, abdomen, or side, they can also lead to nausea and vomiting due to several reasons.
Firstly, the shared nerve connections between the kidney and the gastrointestinal (GI) tract can create an upset stomach, leading to nausea and vomiting. Secondly, the severe pain associated with kidney stones can also trigger nausea. The pain may be so intense that it results in vomiting. This intense pain may also indicate that the kidney stone is blocking the urinary tract, a condition known as renal colic. Renal colic causes severe discomfort in the ribs, hips, lower back, groin area, and lower abdomen.
Additionally, kidney stones can cause an urge to vomit or a feeling of nausea due to the body's response to the presence of the stone. The feeling of nausea or the urge to vomit can be a sign that the kidney stone is attempting to pass out of the kidney and down to the bladder. This movement of the kidney stone can cause discomfort and make it challenging for individuals to stay hydrated.
Furthermore, kidney stones can lead to infections in the kidney or other parts of the urinary tract, resulting in fever and chills. These infections can also contribute to nausea and vomiting. It is important to note that a fever with a kidney stone is considered a surgical emergency, and urgent medical attention is required.
If you or someone you know is experiencing nausea, vomiting, and any other symptoms that may be related to kidney stones, it is advisable to seek medical attention. Early treatment can help prevent potential complications from kidney stones.
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Kidney stones can cause pain in the lower back, belly, or side
Kidney stones are small, hard deposits made of minerals and salts that form within the kidneys. They are one of the most common urinary tract disorders. These tiny, crystalline deposits often form silently in the kidneys, waiting to make their painful debut.
The pain caused by kidney stones can be extreme and agonizing. It can be sharp or severe and is sometimes accompanied by nausea and vomiting. The pain can also be felt when urinating.
Kidney stone pain is usually felt in the back or side and may spread to the groin. It can be a sign of a problem in the kidney or urinary tract. The pain can be caused by kidney stones that are stuck in the kidney or ureter.
Kidney stones can pass without any treatment, but sometimes a procedure is needed to break up or remove the stone if it can't pass on its own or is causing a blockage.
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Kidney stones can be removed through surgery
Kidney stones can be extremely painful and affect around 1 million people in the US each year. They are tiny, crystalline deposits that form in the kidneys. While some kidney stones can pass naturally, others may require surgery.
The type of surgery will depend on the size and location of the kidney stone. If the stone is very large, lodged in the ureters, or causing an obstruction of urine flow, surgery may be the best option. Surgery is also recommended if the kidney stone is causing severe pain, bleeding, or infection.
One common surgical procedure for kidney stones is ureteroscopy with Holmium laser lithotripsy. This procedure involves inserting a narrow, flexible instrument called a ureteroscope through the urethral opening and passing it through to the location of the stone in the ureter or kidney. A small laser fiber is then passed through the ureteroscope to break up and remove the stone. This technique requires no incision and is typically an outpatient procedure.
Another procedure is percutaneous nephrolithotomy, which is used for larger kidney stones or those in hard-to-reach locations. In this procedure, a small incision is made, usually in the back, creating a narrow tunnel directly to the kidney to break up and remove the stone.
Robotic-assisted surgery, or laparoscopic surgery, is another option that provides doctors with a high-resolution, three-dimensional view of the area. This type of surgery can lead to less scarring and faster healing times compared to traditional open surgery.
It is important to follow your doctor's instructions for post-operative care, including taking prescribed medications, drinking enough fluids, and following up with your doctor as needed.
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Kidney stones can be prevented by maintaining a healthy weight and not smoking
Kidney stones can cause back pain, and when accompanied by fever and chills, these could be signs of infection. While kidney stones are common, they can be prevented by making some lifestyle changes. Maintaining a healthy weight and not smoking are two key ways to reduce the risk of developing kidney stones.
Being overweight is associated with an increased risk of kidney stone disease. Weight reduction can lower the chances of stone formation. A conventional, energy-restricted diet can induce weight loss and reduce urinary supersaturation of calcium oxalate in overweight individuals. An energy-restricted diet with partial meal replacement can also decrease the relative supersaturation of uric acid and improve cardiometabolic risk profiles. Intermittent fasting may be a promising strategy for weight loss, although more research is needed to understand its long-term effects.
Smoking is harmful to the kidneys. The Surgeon General has reported that smoking causes diseases in every organ of the body, including the kidney. People who smoke are more likely to have protein in their urine, indicating that their kidneys are under stress. The likelihood of kidney damage increases with the number of cigarettes smoked. Smokers are also more susceptible to requiring dialysis or kidney transplants.
Quitting smoking is challenging, but there are strategies to help increase your chances of success. It is beneficial to write down a list of reasons to quit and refer to it when the urge to smoke is strong. Removing all cigarettes and ashtrays from your surroundings and seeking support from friends and family can also help. There are also medications approved by the U.S. Food and Drug Administration (FDA) to help curb nicotine cravings, such as nicotine gum, inhalers, nasal sprays, patches, and lozenges.
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Frequently asked questions
Kidney stones are small, hard crystals that form in the kidneys and can cause muscle pain. The pain is usually felt in the back or side and may spread to the groin. It can be a dull or sharp pain and is often severe.
The main symptom of kidney stones is pain in the lower back, belly, or side. Other symptoms include nausea, vomiting, cloudy or foul-smelling urine, and the frequent urge to urinate.
Most kidney stones pass out of the body in the urine on their own, but it can take up to three weeks. Drinking extra water can help pass the kidney stone. In some cases, a procedure may be needed to break up or remove the stone if it is causing a blockage.
Kidney stones form when there are too many particles of minerals, acids, and other substances in the urine and not enough liquid. These particles stick together, forming crystals or stones. Eating high-oxalate or low-calcium foods and not drinking enough fluids can contribute to the formation of kidney stones.
Kidney stones are estimated to affect about 1 in 10 people in their lifetime. They are more common in men, especially in their 30s and 40s, and in non-Hispanic white individuals.











































