Kidney stones


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.


What should be noted for kidney stones?
If you have kidney stones, you should avoid vigorous exercise and heavy physical labor in daily life, and avoid eating foods that may aggravate kidney stones. For example, do not eat persimmons, drink tea, consume tofu, or eat too many soy products, etc. The reason to avoid persimmons is that they contain tannins, which can contact stomach acid and more easily bond with plant fibers, forming a stone that may worsen kidney stones. In other aspects, pay attention to a light diet because inflammation is more likely to occur with kidney stones, so avoid eating spicy and stimulating foods. It is recommended that patients go to a regular hospital for examination and treatment.


Causes of Kidney Stones
The causes of kidney stone formation include the following: One reason is the increased amount of stone-forming components in the urine. Various factors that cause an increase in the concentration of salts, uric acid, oxalates, and cystine in the urine can exceed their solubility. This results in the precipitation and crystallization from the urine, which further grows into stones. For example, hyperuricemia can lead to an increased excretion of urinary uric acid, making it easy to form urate stones. Secondly, the reduction in urine substances that inhibit stone formation, including decreases in citrate and magnesium, can promote stone formation. Third, urinary tract obstruction and infection can lead to stone formation. In cases of urinary tract obstruction and poor urine flow, small crystals formed in the urine can easily adhere to the epithelial cells of the urinary tract, becoming the nucleus of the stone. Urinary tract obstruction may also lead to urinary tract infections where bacteria, pus, and damaged, necrotic epithelial cells can also form the core of stones and gradually develop into larger stones. Fourth, diet and hydration play significant roles. Long-term, high intake of high-protein, high-sodium, high-sugar foods can cause increased excretion of urinary calcium and uric acid, while reducing citrate levels, thus promoting stone formation. A decrease in water intake can also cause urine concentration, further promoting stone formation. Fifth, environmental factors and genetic factors are considered to be related to the formation of kidney stones. It is believed that the hardness of water and genetic factors also have certain relationships with kidney stone formation.


Which department should I go to for kidney stones?
After developing kidney stones, it is necessary to promptly visit the urology department of a hospital for examination and treatment. Diagnostic procedures such as ultrasound, CT scans, and imaging are required to determine the exact location and size of the stones. If the stone inside the kidney is small, around five millimeters, this can often be managed by increasing water intake, frequent urination, exercising, and using medications such as stone-expelling granules and effervescent agents to facilitate the expulsion of the stones from the body. If the stone is large and causes hydronephrosis of the kidney, surgery is recommended as soon as possible. If there is a concurrent infection, it is necessary to control the infection before proceeding with surgical treatment.


What department should I go to for kidney stones?
Kidney stones fall under the category of urological diseases. If one suffers from kidney stones, it is necessary to visit a hospital and register at the urology department. Examinations such as color ultrasound and CT scans are required to precisely determine the stone's location and size, and to check if it is accompanied by spinal infection or other conditions for appropriate treatment. If the stone within the kidney is comparatively small, such as about 5 millimeters, conservative treatment to facilitate stone expulsion is generally adopted. This can be achieved through increased water intake and frequent urination, physical exercise, in conjunction with medications like stone-expelling granules and solutions to promote the expulsion of the stone from the body. If the stone is larger and causes renal accumulation of fluid or even infection, it is necessary to first control the infection before proceeding with surgical intervention.


What should you not eat if you have kidney stones?
Since the main component found in kidney stones is calcium oxalate stones, it is necessary to eat less food high in calcium and oxalates in our diet. Common foods that are high in calcium include soy products such as tofu, soy milk, and dairy products like cow's milk and cheese, which should be consumed in moderation. Additionally, it is advisable to eat fewer foods high in oxalates, such as celery, spinach, strawberries, and chocolate. Moreover, if the stones are uric acid stones, it is important to consume less seafood, animal organs, beer, and other foods high in purines. It is best to drink more water every day and urinate frequently to dilute the urine, which can reduce the formation of stones.


How can kidney stones be expelled from the body?
The method of expelling kidney stones from the body is related to the size of the stones. If the diameter of the kidney stone is less than 0.6 centimeters, it can generally pass smoothly through the ureter and urethra to the outside of the body. This can be facilitated by drinking plenty of water and performing physical activity to naturally expel the stones. If a stone gets stuck in a physiologically narrow part of the ureter during expulsion, conservative treatment methods can be used to dilate the ureter, allowing the stone to pass on its own. If the kidney stones are relatively large but do not cause obstruction within the kidney, they can be observed temporarily without treatment. If larger stones get stuck in the ureter or urethra and cannot be expelled on their own, surgery is generally required to remove the stones. After surgery, it is also important to drink plenty of water and urinate frequently.


Are urinary stones the same as kidney stones?
Urinary stones and kidney stones are not exactly the same. Urinary stones refer to stones in the urinary system, including kidney stones, ureter stones, bladder stones, and urethral stones. Therefore, kidney stones are just one type of stones in the urinary system, and urinary stones include kidney stones. If kidney stones occur, one should promptly visit the hospital's urology department for examinations such as ultrasound or CT scans. This facilitates understanding the specific size, location, number of stones, and whether there is accompanying hydronephrosis or infection, allowing for targeted treatment. If the stones are small, drinking plenty of water, urinating frequently, and exercising can help expel the stones from the body. If the stones are large, or there is hydronephrosis, it is advisable to consider surgery as soon as possible.


Which department should I go to for kidney stones?
Kidney stones should be treated by a urologist. For kidney stones, a urology department will perform an ultrasound of the urinary system to examine them. The symptoms of kidney stones mainly depend on the size, shape, and location of the stones, as well as the presence of any obstructions or complications such as infections. Smaller kidney stones often do not cause any symptoms in patients unless the stone falls into the ureter, which can cause acute renal colic, severe lumbar and abdominal pain, and sometimes nausea, vomiting, frequent urination, urgency, and hematuria. If kidney stones are accompanied by a urinary obstruction or infection, patients may experience persistent high fever. If the kidneys have multiple columnar stones, it can lead to impaired renal function and cause renal insufficiency. Therefore, kidney stones should be taken seriously. If the stones are relatively large, consider surgical treatment or lithotripsy.


What is the best treatment for kidney stones?
Kidney stones are generally treated by drinking a lot of water. Smaller stones may be expelled due to the push of a large volume of urine. Secondly, antispasmodic analgesics like M-type cholinergic receptor blockers can be used to relax the ureteral smooth muscle and alleviate spasms. Thirdly, controlling infection is crucial because urinary tract obstructions caused by stones are prone to infections, and infections often lead to the formation of struvite stones, perpetuating a vicious cycle that exacerbates the condition. It is essential to actively remove obstructions caused by stones and use antibiotics for prevention. Fourth, surgical treatment should be considered when pain cannot be alleviated by medication or when the stone is too large.