Main
- Urolithiasis — kidney stones and stones in the urinary tract caused by metabolic disorders and urinary stasis.
- Managed by a urologist: assesses the size and location of the stone, decides on observation, lithotripsy or surgery.
- Reasons to visit: lower back pain, blood in the urine, frequent urges, attacks of renal colic.
- Urgent: unbearable pain, fever, urine has stopped passing — call an ambulance.
- Prevention: drinking regimen, limiting salt and oxalates, timely treatment of infections, check-ups with a urologist.
What is urolithiasis
Urolithiasis is a condition in which dense stones made of salts form in the kidneys or urinary tract. Stones may not bother a person for a long time, but sometimes they cause pain or obstruct the outflow of urine.
What happens in the body
Urine is structured so that salts are dissolved in it and are freely excreted. When the concentration of salts in the urine rises noticeably, they stop being held in solution and begin to precipitate. From this sediment, dense crystals gradually form, which over time bind together and turn into stones. A stone can remain in the kidney for years without revealing itself in any way, remaining an incidental finding during an examination. As long as the stone is small and does not obstruct the flow of urine, a person usually feels completely healthy. The situation is entirely different when the stone shifts and blocks a narrow section of the urinary tract. Then urine accumulates above the obstruction, stretches the walls of the organ and causes sharp pain. Therefore, when such discomfort appears, it is important not to wait until it gets better, but to consult a doctor as early as possible.
What causes it to develop
- Insufficient fluid intake: if a person drinks little water, the urine becomes more concentrated, and salts precipitate in it more easily.
- Excess salt, protein or oxalates in the diet: abundant meat and salty food increases the load on the kidneys and raises the amount of salts that need to be excreted.
- Hereditary predisposition: if close relatives have had stones, the risk of encountering the same problem is noticeably higher.
- Urinary tract infections: microbes change the composition of the urine and create conditions under which crystals bind more quickly into dense formations.
- Metabolic disorders, such as gout: in such conditions, salts accumulate in the urine that should normally be excreted without delay.
- Taking certain medicines: some medications affect the composition of the urine, so they should be reported to the doctor during any examination.
Who encounters this more often
People who have already had similar cases in their family encounter stone formation more often. Heredity sets a tendency for salts in the urine to behave differently than in most people. Metabolic characteristics, such as gout, in which salts accumulate in the body, also noticeably increase the risk. Lifestyle also matters: someone who drinks little water and eats a lot of salt and protein creates a favourable environment for stones. A separate group is people who have had urinary tract infections, because after inflammation the composition of the urine changes. Taking certain medicines also plays a role, which a person sometimes does not even think about. Therefore, when several such circumstances combine, it is reasonable to discuss with a doctor whether additional testing is needed.
What symptoms can occur?
Kidney stones can go unnoticed for a long time, and their first signs are easily put down to tiredness or an uncomfortable position. Below is a breakdown of how the onset is noticed, which signs are most common, and in which cases help is needed without delay.
How it is noticed at the very beginning
In its early stage, kidney stones often manifest as a nagging pain in the lower back or in the side, which a person explains away as overexertion or long sitting. Small stones often pass on their own and are barely felt, so they are discovered by chance. Large stones can get stuck in the urinary tract and cause paroxysmal pain radiating to the lower abdomen or the groin. Sometimes the only sign is a change in the colour of urine, when it becomes pink or brown. This is joined by frequent urges to urinate, which are easily mistaken for exposure to cold. A stinging or burning sensation when urinating is also put down to a chill and the visit to the doctor is postponed. If the pain in the lower back or side persists and recurs, it is sensible not to wait but to book an appointment with a urologist in the near future.
Signs that are most common
- Pain in the lower back or side: paroxysmal, radiating to the lower abdomen or the groin, its intensity depends on the size and location of the stone.
- Blood in the urine: the urine becomes pink or brown, and this is sometimes the only noticeable sign of the disease.
- Frequent urges to urinate: they occur regardless of the amount of fluid drunk and disrupt the usual rhythm of the day.
- A stinging or burning sensation when urinating: it appears when the stone irritates the tract, and often accompanies other signs.
- Nausea and vomiting against a background of pain: severe pain in the side often causes these reactions, which makes a person think of a stomach upset.
- Cloudy urine with an unpleasant odour: this appearance of urine together with pain and blood is a reason not to postpone a visit to a urologist.
When to seek help urgently
Examinations and tests
Investigations for kidney stones help to see the stone, assess its size and understand how the kidneys are working. The doctor selects the scope of diagnostics individually, and sometimes follow-up monitoring is required.
How the investigation begins
The investigation begins with a history: the doctor asks in detail about the complaints, when they appeared and how they changed over time. Past and chronic illnesses, operations, as well as cases of stones in close relatives are clarified separately. This information sets the direction of the search and helps to understand which causes should be excluded first. The doctor then proceeds to examination and prescribes the necessary investigations in order to see the stone and assess kidney function. The set of procedures is never the same: one person needs only tests and an ultrasound scan, while another requires a computed tomography scan. If the picture remains unclear, the doctor may suggest a repeat examination after some time. That is why it is important to keep all the results and come to the appointment with the reports already prepared.
What is prescribed and what it shows
What is worth preparing for the appointment
- Reports: take all medical documents describing past visits and operations — this will help the doctor to see the overall picture.
- Test results: bring recent and older urine and blood tests so that the parameters can be compared over time.
- Images: collect the films and reports of ultrasound and computed tomography scans, if they have already been performed previously.
- List of complaints: write down in advance when the pain appeared, how often it occurs and what accompanies it — this way the account will be more complete.
- Questions: formulate in advance what you want to clarify with the doctor so as not to forget anything important during the conversation.
Which doctor should I see?
This section explains which doctor to consult for urolithiasis and what happens at the first appointment. It also breaks down what areas of care it consists of and which part of the result depends on the patient themselves.
Which specialist manages this condition
Urolithiasis is managed by a urologist, and if there are accompanying metabolic disorders, a nephrologist is also involved. The urologist assesses the size of the stone, its location and the severity of symptoms, because the approach depends directly on these circumstances. If there is no urologist nearby, you can start with a nephrologist or a general practitioner, who will refer you further along the right pathway. At the first appointment, the doctor clarifies the complaints, gathers information about previous episodes and orders tests to see the full picture. Small stones often pass on their own, and then the urologist recommends observation and pain relief under their supervision. For large stones or complications, methods of breaking up and removing them are discussed, and the choice of method is made by the urologist after examination. The patient should bring all available reports and scans so that the doctor does not order again what has already been done.
What treatment consists of
- Observation and pain relief: the doctor monitors the passage of the stone and selects pain-relieving therapy to control the pain.
- Fluid intake and diet: the doctor's recommendations on fluid volume and dietary composition reduce the load on the kidneys and lower the risk of stone growth.
- Extracorporeal shock wave lithotripsy: the method is used when the size and location of the stone are suitable and it does not pass on its own.
- Endoscopic stone removal: the stone is extracted through natural pathways or a small access point, which allows it to be removed without a large incision.
- Surgery for large stones or impaired urine outflow: surgical intervention restores patency and prevents complications on the part of the kidney.
- Treatment of urinary tract infection: if an infection has set in, it is dealt with first, otherwise any intervention becomes risky.
What depends on the patient themselves
The regularity of follow-up with a urologist determines how predictable the course of urolithiasis will be. If the patient attends check-ups and follows the recommendations on fluid intake and diet, the doctor notices changes in time and adjusts the approach. Missed visits lead to the stone growing unnoticed, and complications being detected only at the stage of pronounced symptoms. Records of previous episodes, scans and reports help the doctor see the dynamics rather than guess at the causes of deterioration. A person who monitors their condition and reports new complaints receives more accurate decisions on further care. Refraining from independent attempts to influence the situation reduces the risk of irreversible changes in the kidney. It is sensible to keep all medical documents in one place and bring them to every appointment.
What helps prevent an exacerbation?
Prevention of urolithiasis is based on reducing the concentration of salts in the urine and regular monitoring. Below is what depends on the person themselves and how this reduces the risk of exacerbation.
What is changed in habits
Drinking regimen is the foundation of prevention in those prone to stone formation, since a sufficient amount of fluid reduces the concentration of salts in the urine. During the day, fluid should be drunk evenly, not in one go, and one should use clear light urine as a simple everyday sign of sufficient drinking. Diet is built taking into account the type of stones: salt and foods rich in oxalates are limited, and animal protein is consumed in moderation. Urinary tract infections are treated promptly, because their prolonged course maintains inflammation and changes the composition of urine. The habit of postponing a visit to a urologist when prone to stones leads to new calculi being noticed only by pain. Dietary recommendations are given by a doctor, and the scope of prevention depends on the type of stones and the causes of their formation. It is reasonable to start with the drinking regimen and limiting salt, and to agree on the remaining steps with a specialist.
What should be kept under control
- Drinking regimen: the amount of fluid per day and its even distribution, because the concentration of salts in the urine directly depends on this.
- Diet: the proportion of salt, oxalate-containing foods and animal protein in the diet, since these components affect the composition of urine.
- Urinary tract infections: their timely treatment, as prolonged inflammation maintains the conditions for stone growth.
- Examination by a urologist: regular visits when prone to stones, because they help to notice new formations in time.
- Type of stones and causes: information about them, because the scope of prevention and dietary recommendations depend on this.
How often to see a doctor
Regular monitoring by a urologist is needed even with good health, if stones have already occurred, since new formations do not make themselves known for a long time. The scope of prevention depends on the type of stones and the causes of their formation, so the monitoring plan differs from person to person. At the appointment, the doctor clarifies how the person drinks fluid, how they eat and whether there have been episodes of urinary tract infections. If stones have already occurred, regular monitoring helps to notice new ones in time and discuss changes in habits. It is easy to skip visits when nothing hurts, but it is precisely during a calm period that it is easier to adjust diet and drinking regimen. When prone to stones, examination by a urologist is carried out regularly, and not only when pain appears. It is reasonable to keep the date of the visit in sight and not to postpone it because of the absence of complaints.
What is worth remembering
Kidney stones rarely disappear on their own, but they also do not require constant anxiety. Below is what is worth keeping in mind when the reader closes the page.
Key takeaways
Kidney stone disease is a condition in which stones may go unnoticed for years and then manifest as an attack. A stone forms gradually, so a long time often passes between the first change in test results and the pain. Monitoring by a doctor, even in the absence of complaints, helps to spot the problem in advance. An attack usually begins suddenly and is accompanied by severe pain in the lower back radiating to the lower abdomen. It is dangerous to endure such pain and wait for it to pass on its own: delay complicates treatment. After an episode, stones often form again if nothing is changed in one's habits. Therefore, it is sensible to rely not on one-off measures but on calm, regular monitoring. It is worth discussing with a doctor not only how one feels but also one's drinking regime, diet and lifestyle in general.
