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What are kidney stones?
Kidney stones are hard lumps made from minerals and salts that form inside the kidneys. They can vary in size from tiny grains to larger stones that may block the flow of urine.
Some kidney stones stay in the kidney, while others move into the ureter, the tube that carries urine to the bladder. When this happens, they can cause a lot of pain.
Why do kidney stones happen?
Kidney stones form when urine contains too much of certain substances, such as calcium, oxalate, uric acid, or cystine. If there is not enough fluid in the urine, these substances can stick together and form crystals.
Over time, the crystals can grow into a stone. Dehydration, certain medical conditions, and some diets can increase the risk of developing kidney stones.
What are the symptoms?
Kidney stones do not always cause symptoms, especially if they are small. They may be found by chance during a scan for another problem.
When symptoms do happen, they often include severe pain in the side or lower back, blood in the urine, and a frequent need to urinate. Some people may also feel sick or vomit.
How are kidney stones treated?
Small stones may pass out of the body naturally in the urine. Drinking plenty of water and taking pain relief can help while this happens.
Larger stones may need medical treatment. Depending on the size and location of the stone, treatment may include medicines, shock wave treatment, or a procedure to remove the stone.
Can kidney stones be prevented?
In many cases, kidney stones can be reduced by drinking enough fluids each day. Aiming for pale urine is often a simple way to check whether you are well hydrated.
Other steps may help too, such as cutting back on salt and not having too much animal protein. Some people may also need advice from a GP or specialist about changes to their diet or medicine to lower the risk of stones returning.
Understanding Kidney Stones
What are Kidney Stones?
Kidney stones are hard bits that can form in your kidneys. They are made of minerals and salts. These stones can be very small or bigger. Sometimes, big stones can hurt a lot and you may need a doctor to help. It is good to learn about kidney stones so you can keep your kidneys healthy.
Causes and Risk Factors
Kidney stones happen for different reasons. Not drinking enough water, eating too much salt, sugar, or protein, and some illnesses can cause stones. If your family has kidney stones, you might get them too. In the UK, not drinking enough water and eating certain foods can make kidney stones more likely.
Symptoms of Kidney Stones
You might not know you have kidney stones until they move around. Then, you might feel pain in your back or side, see blood in your pee, feel sick, throw up, or need to pee a lot. If you live in the UK and have these symptoms, you should see a doctor.
Treatment Options
How doctors treat kidney stones depends on how big they are. Small stones might go away if you drink lots of water and take medicine for pain. Big stones might need special treatments. These can include medicine, using waves to break the stones, or surgery to take the stones out. The NHS can help people in the UK who have kidney stones.
Preventive Measures
Stopping kidney stones before they start is very important. You can do this by drinking plenty of water, eating a diet with less salt and sugar, and not eating too much protein. Going to the doctor for regular check-ups can help. People in the UK should talk to their doctor to find the best ways to stop kidney stones.
Frequently Asked Questions
Kidney stones are hard mineral and salt deposits that form inside the kidneys when certain substances in urine become highly concentrated.
They form when urine contains too much stone-forming material such as calcium, oxalate, uric acid, or cystine, and not enough fluid to dilute it.
Yes, kidney stones are fairly common and can affect people of many ages, though risk increases in some individuals based on diet, genetics, and medical conditions.
They often cause severe pain in the back or side, pain that may move to the lower abdomen or groin, and sometimes nausea, vomiting, or urinary symptoms.
No, small kidney stones may not cause symptoms if they remain in the kidney or pass without blocking urine flow.
They are commonly diagnosed with a medical history, physical exam, urine tests, blood tests, and imaging such as a CT scan, ultrasound, or X-ray.
The main types are calcium stones, uric acid stones, struvite stones, and cystine stones.
Calcium stones are the most common type and are usually made of calcium oxalate, though some are made of calcium phosphate.
Uric acid stones can form when urine is too acidic, and they are more likely in people with gout, dehydration, or certain dietary patterns.
Struvite stones are linked to urinary tract infections and can grow quickly, sometimes becoming large if not treated.
Cystine stones are rare and occur in people with a hereditary condition called cystinuria, which causes too much cystine to leak into the urine.
Yes, many small kidney stones can pass naturally with time, fluids, and pain control, but larger stones may need treatment.
Treatment depends on size and location and may include drinking fluids, pain medicine, medications to help pass the stone, shock wave treatment, or procedures to remove it.
Surgery or a procedure is often needed when a stone is too large to pass, causes severe blockage or infection, or does not move with conservative treatment.
Yes, kidney stones can recur, especially if the underlying cause is not addressed through diet, hydration, or medical treatment.
Prevention usually includes drinking enough water, reducing salt intake, moderating animal protein, and following diet or medication advice based on the stone type.
Yes, diet can influence risk, especially high sodium intake, too little fluid, and certain amounts of oxalate, calcium, or animal protein depending on the stone type.
Yes, dehydration is a major risk factor because it makes urine more concentrated, which allows stone-forming minerals to crystallize more easily.
Most kidney stones do not cause permanent damage if treated, but repeated stones or long-lasting blockage can harm kidney function.
Medical care should be sought for severe pain, fever, chills, trouble urinating, persistent vomiting, or any signs of infection or blockage.
Kidney stones are hard lumps. They are made of minerals and salts. They form inside your kidneys. They can be big or small. They can hurt a lot when they move through your body.
Kidney stones happen when your pee has too many tiny bits like calcium, oxalate, and uric acid. These bits stick together and make stones.
To help, drink lots of water to stop stones. You can also ask a doctor or a friend for help. Use tools like picture guides or easy-reading apps.
Some things you might feel are really strong pain in your back or side, blood in your pee, feeling sick, throwing up, and needing to pee a lot. The pain can move to other parts of your belly and groin.
If it's hard to understand, you can ask someone to help you read it. You can also use a tool that reads words out loud for you.
To find out if someone has stones in their urine, doctors can do some tests. They can check your blood or urine. They might also take special pictures of inside your body using machines like CT scanners, X-rays, or ultrasounds.
People are more likely to get kidney stones if their family has a history of them. People who get bladder infections often, and those with health problems like hyperparathyroidism, are also at higher risk.
If reading is hard, you can ask someone to read out loud with you. It is also okay to read slowly or take breaks.
Yes, drinking lots of water, eating less salt, and not eating too many foods like spinach and nuts can help stop kidney stones. Some people might also need medicine.
Treatment depends on how big the stone is and what kind it is. Small stones might go away by themselves. Big stones might need medicine, a special machine to break them, or surgery to take them out.
If you think you might have a kidney stone, it's important to talk to your doctor or go to the closest hospital. They will help you find out what's wrong and tell you what treatment you need.
No, you don’t always need surgery for kidney stones. Many times, you can use medicine and change what you eat and drink to help. But if the stones are really big or hurt a lot, doctors might need to do surgery to help you feel better.
Lithotripsy is a way to help break kidney stones without surgery. It uses shock waves to smash the stones into tiny bits so they can easily come out when you pee.
Yes, there are four main kinds of kidney stones. They are calcium oxalate, uric acid, struvite, and cystine stones. Each one can happen for different reasons and might need a different way to help you feel better.
Yes, the food you eat is very important. Eating too many foods with oxalate, having too much salt, and not drinking enough water can make it easier to get kidney stones.
Try to drink 2-3 big bottles of water every day. This can help stop kidney stones from forming. Drinking lots of water helps keep things in your pee from turning into stones.
Yes, kids can get kidney stones, but it does not happen a lot. Things that might make this happen are not drinking enough water, eating certain foods, and some health problems.
Once you have had kidney stones, you might get them again. But there are ways to stop them from coming back. Changing what you eat and taking medicine can help.
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This website offers general information and is not a substitute for professional advice.
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