
Crystals in urine, also known as crystalluria, occur when there is an excessive amount of minerals in the urine. This can be caused by a variety of factors, including dehydration, diet, medication, and underlying health conditions. While some crystals may not cause any symptoms or problems, larger crystals can form into kidney stones, which can cause pain, bleeding, and damage to the kidneys and urinary system. Treatment for urine crystals depends on the underlying cause and may involve increasing fluid intake, dietary changes, medication adjustments, or medical procedures to remove kidney stones.
| Characteristics | Values |
|---|---|
| Cause | Excess minerals in urine, dehydration, diet, medication, urinary tract infections, kidney stones, cystinuria, hyperparathyroidism, inflammatory bowel disease, dent disease |
| Symptoms | Lower back pain, nausea, frequent urination, fever, sharp abdominal pain, cloudy or foamy urine, bloody urine, bad-smelling urine |
| Treatment | Drink more water, change diet, change medication, antibiotics, ureteroscopy, percutaneous nephrolithotomy, lithotripsy, stent |
| Prevention | Drink more water, reduce salt and sugar intake, avoid calcium carbonate supplements, increase calcium from other sources (e.g. dairy) |
| Types of Crystals | Ammonium biurate, calcium oxalate, calcium phosphate, hippuric acid, struvite (magnesium ammonium phosphate), cholesterol, cystine, uric acid |
What You'll Learn
- Drink more water
- Cut back on salt, sugar, protein, and vitamin C
- Switch medication
- Treat underlying conditions
- Pass kidney stones naturally

Drink more water
Crystals in urine, also known as crystalluria, occur when there are too many minerals in the urine and not enough liquid. This causes tiny pieces to collect and form masses. While some crystals may not cause any symptoms, larger masses can block urine from leaving the body and cause serious problems such as acute kidney injury.
Drinking more water is one of the most effective ways to prevent and treat urine crystals. Water helps to dilute the chemical concentrations in the urine, thereby preventing crystals from forming. By staying hydrated, you can also lower your risk of developing crystals in your urine and stones in your urinary tract.
The presence of crystals in the urine can be a sign of dehydration, which is caused by not drinking enough water. Dehydration can lead to the formation of urine crystals, as the minerals in the urine become concentrated and solidify into salt crystals. Therefore, increasing water intake can help to prevent and treat crystalluria by diluting the minerals and inhibiting crystal formation.
In addition to preventing crystal formation, drinking water can also aid in the treatment of existing crystals and stones. Increasing water consumption can help to flush out small crystals and stones, allowing them to pass out of the body naturally. This is especially important for uric acid stones, which can cause pain and blood in the urine. By drinking plenty of water, individuals can promote the dissolution of uric acid and facilitate the passage of stones.
It is important to note that while drinking water is a crucial step in preventing and treating urine crystals, it may not always be sufficient. In some cases, underlying health conditions or dietary factors may contribute to crystal formation. Therefore, it is advisable to consult with a healthcare provider to determine the specific cause of the crystals and receive personalized treatment recommendations.
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Cut back on salt, sugar, protein, and vitamin C
Crystals in urine, or crystalluria, is a common occurrence that can be found during urine testing. While it is often harmless, it can sometimes indicate an underlying condition. One of the most common causes of crystals in urine is dehydration, so it is important to drink enough water and stay hydrated.
In addition to increasing water intake, it may be beneficial to cut back on salt, sugar, protein, and vitamin C. A diet high in salt can cause calcium to build up in the urine, which can lead to the formation of kidney stones. Similarly, a diet high in protein can increase uric acid in the urine, promoting the formation of uric acid crystals, which can also lead to kidney stones.
Oxalate is a natural substance found in many foods, such as spinach, rhubarb, bran, soy, beets, and nuts. When there is too much oxalate in the body, it can form crystals in the urine, which can also lead to kidney stones. Vitamin C increases oxalate levels in the urine, so reducing vitamin C intake can help prevent the formation of oxalate crystals.
Sugar can also contribute to the formation of crystals in urine, although the mechanism is less clear. However, it is worth noting that a high intake of sugar is generally associated with an increased risk of developing kidney stones. Therefore, reducing sugar intake may help prevent the formation of crystals and kidney stones.
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Switch medication
Crystals in urine, or crystalluria, can be caused by various factors, including diet, underlying health conditions, and certain medications. While some crystals are harmless and can pass through the urinary tract without causing any issues, others can lead to the formation of kidney stones and blockages, requiring medical intervention.
If the presence of crystals in urine is attributed to medication, switching to an alternative or adjusting the dosage may be necessary. This decision should be made in consultation with a healthcare provider, who can evaluate the underlying cause and recommend appropriate alternatives.
For instance, if the crystals are a result of consuming specific medications, such as calcium-based antacids, certain antibiotics, diuretics, or antiviral medications, discontinuing or substituting them with other suitable treatments may be considered. Additionally, if the crystals are caused by high levels of uric acid in the body (hyperuricemia), which can be influenced by certain medications, your healthcare provider may suggest alternatives that do not contribute to this issue.
In cases where crystals are caused by high acidity in the urine, your healthcare provider might recommend medications that help regulate acid levels. This could include drugs that reduce acid secretion or promote acid neutralization. However, it is important to note that the choice of medication will depend on the specific type of crystals present and the underlying cause.
Furthermore, switching medication may not always be the first line of treatment. In some cases, your healthcare provider may initially recommend lifestyle changes, such as increasing fluid intake, adjusting your diet, or incorporating supplements, before considering a medication change. It is important to closely monitor your symptoms and follow the advice of your healthcare provider to effectively manage crystals in your urine and prevent potential complications.
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Treat underlying conditions
Crystals in the urine, or crystalluria, can be caused by a variety of factors, including diet, dehydration, medications, and underlying health conditions. While small crystals are common and usually harmless, larger amounts of certain types of crystals can indicate an underlying health issue that requires treatment.
If you have crystals in your urine, it is important to consult a healthcare professional, who can advise you on the best course of action. Treatment for crystals in the urine will depend on the underlying cause. Here are some common underlying conditions that can lead to urine crystals and the approaches to treating them:
- Dehydration: Dehydration is a common cause of urine crystals. The best way to prevent and treat dehydration-related crystals is to increase your fluid intake, particularly water. Staying adequately hydrated helps to dilute the chemical concentrations in the urine, preventing crystals from forming.
- Diet: A diet high in protein, salt, or oxalate can contribute to the formation of urine crystals. Treatment in this case involves making dietary modifications. Your healthcare provider may recommend reducing your protein intake, lowering your salt consumption by avoiding processed foods, and cutting back on foods high in oxalate. Working with a registered dietitian can help you make these dietary adjustments while still maintaining a healthy nutritional balance.
- Medications: Certain medications, such as calcium-based antacids, antibiotics, diuretics, and antiviral medicines, can lead to the development of urine crystals. Treating this underlying cause may involve switching medications or adjusting dosages under the guidance of your healthcare provider.
- Infections and Kidney Stones: Urinary tract infections (UTIs) and kidney stones are common underlying conditions associated with urine crystals. If a UTI is the cause, your doctor will likely prescribe antibiotics to clear the infection. Kidney stones, on the other hand, may require more extensive treatment, including pain management, medication, or in some cases, surgical removal of the stones.
- Genetic and Metabolic Conditions: In some cases, urine crystals can be indicative of rare inherited disorders, such as cystinuria (caused by cystine crystals) or metabolic conditions like renal tubular disease. Treatment for these underlying conditions may involve alkali therapy or other targeted treatments.
- Tumor Lysis Syndrome: This condition arises from the death of a large number of cancer cells, often as a result of cancer treatment. Treatment for tumor lysis syndrome aims to manage the complications and may include intravenous fluids, medications to prevent crystal formation, and careful monitoring of vital signs.
It is important to remember that the treatment for crystals in the urine is highly dependent on the specific underlying cause. Consulting with a healthcare professional is essential to receive an accurate diagnosis and tailored treatment plan.
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Pass kidney stones naturally
Passing kidney stones can be a painful experience, but there are ways to help speed up the process and prevent new stones from forming.
Firstly, drinking plenty of water and fluids is important. Aim for about 2 liters of urine output daily, as this will help to flush out the stones and prevent new ones from forming. Dehydration is one of the main risk factors for kidney stones, so it is important to stay properly hydrated. You can also add freshly squeezed lemons to your water, as lemon juice is a good source of citrate, which prevents calcium stones from forming.
Secondly, certain foods may help prevent kidney stones. A high-sodium diet can trigger kidney stones, so it is important to limit your sodium intake. Eating too much animal protein, such as meat, eggs, and seafood, can also increase the risk of stone formation, so it is best to limit your daily meat intake.
There are also some natural remedies that may help. Apple cider vinegar and herbal supplements such as nettle leaf may aid in passing kidney stones. However, it is important to speak to a doctor before trying any home remedies, as some remedies may interact with certain medications.
If the kidney stones are causing severe pain or have not passed within 24 hours, medical treatment may be necessary. Over-the-counter pain relievers, such as ibuprofen or acetaminophen, can help manage pain. There are also prescription medications and procedures, such as shockwave therapy, that can be used to break up or remove the kidney stones.
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Frequently asked questions
Urine crystals are formed in the kidneys when there are too many minerals in a person's urine. They can be caused by minor issues like a slight excess of protein or vitamin C, or by more serious underlying conditions.
Urine crystals may cause no symptoms. However, if crystals form into larger stones, they can cause lower back pain, nausea, and frequent urination.
You should speak to your healthcare provider, who will likely order a urine test to check for crystals. This may be a 24-hour urine collection test, where you collect all your urine for a 24-hour period in a special container.
Treatment depends on the cause of the crystals. In some cases, you may just need to drink more water or cut back on your consumption of certain foods, like salt, sugar, or oxalate-rich foods. If the crystals are caused by medication, your doctor may change your prescription. If the crystals are a symptom of another condition, this condition will be treated.
Yes, you can lower your risk of developing urine crystals by drinking an adequate amount of fluids, such as water. Doctors recommend that people who have had kidney stones drink 2.5 litres of water each day.