How are kidney stones caused?

Written by Wang Shuai
Urology
Updated on September 03, 2024
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There are many causes leading to the formation of kidney stones, related to daily water and food intake, lifestyle habits, living environment, genetics, and certain diseases. For example, patients with hyperuricemia and those with hyperfunctioning parathyroid glands are prone to the formation of kidney stones. Additionally, individuals who often stay in high-temperature environments and neglect to drink water frequently and urinate regularly, can easily experience concentrated urine, which also promotes the formation of kidney stones. Furthermore, people who consume large amounts of calcium and oxalate-rich foods over long periods are also commonly at risk of developing kidney stones.

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How to relieve the pain of kidney stones

Kidney stones, if mobile within the kidney, can cause intense pain in the patient's lumbar and abdominal area, clinically referred to as renal colic. Patients often experience unbearable pain, heavy sweating, along with symptoms such as nausea and vomiting. In such cases, it is crucial to seek timely treatment at the hospital's urology department. Doctors will use medications to alleviate pain and spasm. If there is nausea and vomiting, antiemetic drugs will also be used to relieve symptoms. Once diagnosed with kidney stones, patients are advised to seek treatment at a hospital as soon as possible.

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Written by Wu Ji
Nephrology
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How to treat polycystic kidney kidney stones

Patients with polycystic kidney disease who develop kidney stones should be treated the same as patients without polycystic kidney disease. It is encouraged for patients to drink more water. If the stones are symptomatic, treatments such as extracorporeal shock wave lithotripsy or percutaneous nephrolithotomy may be considered. The main principles of treatment include managing renal colic, promoting stone expulsion, dissolving stones, or surgical interventions, as well as preventing recurrence. During a renal colic episode, it is primarily recommended to administer antispasmodic analgesics. Commonly used medications include scopolamine butylbromide and atropine, or combinations of atropine with pethidine or morphine. Expulsion therapy mainly involves drinking plenty of water, proper physical activity, and the use of some antispasmodic drugs to help expel the stones. Surgical treatment is aimed at patients with anuria and post-renal acute renal failure, or in cases where the stone diameter is larger than one centimeter, or if the expulsion therapy is ineffective, especially if there are still episodes of renal colic. Systemic metabolic disorders are an important cause of kidney stone formation, thus even after stones are cleared, recurrence is possible. Therefore, to prevent recurrence, it is advisable to ensure a daily urine output of 2000 to 2500 milliliters, avoid drinking tea and coffee as much as possible, adjust dietary habits, and treat systemic metabolic abnormalities, such as hypercalcemia, hyperuricemia, and cystinuria, among others.

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Written by Chen Feng
Urology
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What are the symptoms of kidney stones?

The symptoms of kidney stones vary depending on the size of the stones and whether they cause obstruction. If the stones are relatively small, they can usually pass smoothly through the ureters and urethra and be expelled from the body without causing any symptoms. When the stones are expelled, small stones can be seen in the urine. If the kidney stones are relatively large but do not cause obstruction in the kidneys or bladder, they generally do not cause any symptoms. Symptoms occur only when larger stones move downward and become lodged in the ureters, causing back pain, nausea, and vomiting. The stones can scratch the walls of the ureters, leading to blood in the urine. When stones get stuck in the urethra, it can cause painful urination discomfort and perineal pain. Since the stones can scratch the inner walls of the urethra, they may also cause blood in the urine.

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Written by Chen Feng
Urology
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What is the best treatment for kidney stones?

The treatment methods for kidney stones vary based on the size of the stone and whether it causes obstruction. If the kidney stone is relatively small and can pass through the ureter and urethra on its own, no special treatment is needed. In such cases, drinking more water, urinating frequently, and jumping can help the stone to pass naturally. If the kidney stone is relatively large but does not cause obstruction in the kidney or bladder, these patients can be temporarily observed with regular check-ups to monitor the stone's condition, without needing special treatment. Only when a large stone gets stuck at the junction of the renal pelvis, ureter, or urethra during its passage does it cause urinary obstruction, and the patient may also experience pain. In such cases, the treatment generally involves surgically removing the stone.

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Urology
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Where is the best place to massage for kidney stones?

Patients with kidney stones will find that massage is ineffective. For those with stones smaller than 0.5 cm, engaging in more physical activity such as playing basketball, jumping rope, or running, along with increasing fluid intake and urination, can help facilitate the expulsion of the stones. If the stones are larger, over 0.5 cm, treatment with extracorporeal shock wave lithotripsy is necessary. For stones larger than 1.5 cm, surgical intervention is required. Beyond these methods, there are no other treatments, and massage does not have a therapeutic effect.