Kidney Stones in Men: Symptoms, Causes & Bangkok Cost 2026

If you have ever passed a kidney stone, you do not forget it. The pain tends to arrive without warning, usually on one side of the lower back, and builds into waves that no position seems to ease. Many men describe it as worse than anything they have felt. The reassuring part is that kidney stones are both common and, in almost all cases, very treatable. Most small stones leave the body on their own, and the ones that do not can be cleared with day-case procedures that have improved a great deal over the past two decades.

This guide is written for men trying to make sense of stone symptoms, why stones form, how they are diagnosed, and what treatment in Bangkok actually involves and costs. We cover the three main procedures (shock wave lithotripsy, laser ureteroscopy, and keyhole surgery for large stones), realistic local pricing in Thai baht and US dollars, who each option suits, recovery, and the warning signs that mean you should not wait. None of this replaces a consultation. Stone management depends on the exact size, location, and number of stones, which only imaging and a urologist can confirm.

Why Kidney Stones Affect Men More

Kidney stones are hard deposits that form when minerals and salts in the urine become concentrated enough to crystallise and clump together. They start in the kidney and cause the most trouble when they move into the ureter, the narrow tube that drains urine to the bladder, where even a small stone can block flow and trigger pain.

Men are affected more often than women. According to the US National Institute of Diabetes and Digestive and Kidney Diseases, about 11 percent of men and 6 percent of women in the United States have a kidney stone at least once in their lifetime, and people who have had one stone are more likely to form another (NIDDK). Several factors push the numbers higher in men, including dietary patterns higher in animal protein and salt, body composition, and in some cases lower day-to-day fluid intake. In a hot, humid climate like Thailand's, dehydration adds another layer of risk for residents and visitors alike, because concentrated urine is the single most consistent driver of stone formation.

The Main Stone Types

Knowing the stone type matters because it shapes prevention and, occasionally, treatment.

• Calcium oxalate stones are by far the most common. They are linked to dehydration, high-oxalate foods, and individual metabolic tendencies.

• Uric acid stones form in acidic urine and are more common in men with gout, high red-meat intake, obesity, or diabetes. These are the one type that can sometimes be dissolved with medication rather than removed.

• Struvite (infection) stones form in the setting of certain urinary infections and can grow quickly into large, branched "staghorn" stones.

• Cystine stones are rare and caused by an inherited condition that makes the kidneys leak too much of the amino acid cystine.

Symptoms: What a Stone Actually Feels Like

A stone sitting quietly inside the kidney often causes nothing at all and may be found by chance on a scan. Symptoms usually begin when a stone moves and partially blocks the ureter. Typical features in men include:

• Sudden, severe pain in the flank or lower back, classically coming in waves (renal colic) rather than staying steady

• Pain that radiates downward toward the groin and, in men, sometimes to the tip of the penis or the testicle on the same side

• Blood in the urine, which may look pink, red, or brown, or may only show up on a urine test

• A frequent or urgent need to urinate, and stinging when the stone is near the bladder

• Nausea and vomiting, which often travel with the pain

• Cloudy or foul-smelling urine, which can point to infection

Pain that shifts location as the stone travels is common and does not mean something new is wrong. What does change the picture is fever. A high temperature or shaking chills alongside stone pain can signal an infected, obstructed kidney, which is an emergency. More on that in the red-flag section below.

Causes and Risk Factors

Stones rarely have a single cause. They usually reflect a mix of habits, body chemistry, and sometimes genetics.

Lifestyle and diet

• Low fluid intake and dehydration, the most important and most modifiable factor

• A high-salt diet, which raises calcium in the urine

• High intake of animal protein, which makes urine more acidic

• Large amounts of high-oxalate foods such as spinach, rhubarb, nuts, and excessive black tea

• High intake of sugary or fructose-rich drinks

Medical and genetic factors

• A personal or family history of stones, which is one of the strongest predictors

• Gout and conditions that raise uric acid

• Obesity, type 2 diabetes, and features of metabolic syndrome

• Recurrent urinary tract infections

• Conditions that raise calcium in the urine, and some bowel diseases that affect absorption

Medications and supplements

Certain diuretics, some HIV medications, topiramate, and high-dose vitamin C or calcium supplements taken without food can increase risk in susceptible people. If you form stones repeatedly, it is worth reviewing your full medication and supplement list with a doctor.

How Kidney Stones Are Diagnosed

The goals of assessment are to confirm a stone is present, measure its size and exact location, check whether it is blocking the kidney, and rule out infection. A typical work-up combines several of the following.

1. Urinalysis. A simple urine test looks for blood, crystals, and signs of infection, and helps gauge how acidic the urine is.

2. Blood tests. These check kidney function and look at calcium and uric acid levels, which can hint at the underlying cause.

3. Ultrasound. Quick, radiation-free, and useful as a first look, especially for stones in the kidney and for detecting swelling (hydronephrosis). It can miss small stones in the ureter.

4. Non-contrast CT scan. A low-dose CT of the kidneys, ureters, and bladder is the most accurate test for stones and is widely regarded as the reference standard. It reliably shows stone size, position, and density, and the degree of any blockage. The AUA guideline specifically advises obtaining a CT before keyhole stone surgery to plan the approach (AUA, 2026).

5. Stone analysis. If you pass or have a stone removed, sending it to the lab to identify its composition is one of the most useful steps for preventing the next one.

Imaging does more than confirm the diagnosis. Stone size on CT is the best single predictor of whether a stone will pass on its own, which directly shapes the treatment plan described next.

Treatment Options

Treatment is guided by stone size, location, composition, your symptoms, and whether the kidney is obstructed or infected. The options run from simply waiting with good hydration through to keyhole surgery for large stones. The right choice is individual, and a urologist will weigh these factors with you.

1. Watchful Waiting and Medical Management (Small Stones)

Many stones do not need a procedure. For stones under about 5 mm, the odds of passing naturally are good, particularly when the stone sits low in the ureter. For stones in the lower (distal) ureter, reported spontaneous passage rates are roughly 71 to 98 percent for those smaller than 5 mm and about 25 to 53 percent for those in the 5 to 10 mm range (Bos and Kapoor, 2014). Stones higher up in the ureter or sitting in the kidney pass less reliably. Management centres on:

• Drinking enough fluid to keep urine pale, unless a doctor has told you to restrict fluids

• Pain relief, usually with anti-inflammatory medication where appropriate

• An alpha-blocker such as tamsulosin, which relaxes the lower ureter and can help suitable stones (typically 5 to 10 mm and lower down) pass more readily, a strategy known as medical expulsive therapy (Bos and Kapoor, 2014)

• Anti-nausea medication when needed

• Straining urine to catch the stone for analysis

Tamsulosin and other prescription medicines require a doctor's assessment and prescription, and are not suitable for everyone.

2. Shock Wave Lithotripsy (ESWL)

ESWL uses focused sound waves delivered from outside the body to break a stone into fragments small enough to pass in the urine. There is no incision and no scope inside the body, and it is usually done as an outpatient with light sedation.

• Best for: smaller kidney stones and some upper-ureteric stones, generally under about 2 cm and not too dense

• Upsides: non-invasive, fast recovery, no surgical wound

• Trade-offs: may need more than one session, fragments still have to pass (which can cause a few days of discomfort), and success is lower for large, hard, or lower-pole stones

3. Laser Ureteroscopy and RIRS

In ureteroscopy, a very thin scope is passed up through the urethra and bladder to reach the stone in the ureter or kidney. A laser fragments or dusts the stone, and pieces can be removed in the same session. When the scope is steered up into the kidney itself, the technique is called retrograde intrarenal surgery (RIRS). A soft tube called a ureteric stent is often left in place for a short period afterward to keep the ureter open.

• Best for: ureteric stones, medium kidney stones, harder stones, and cases where ESWL is unlikely to work or has failed

• Upsides: high single-session success, no external incision, effective even for denser stones

• Trade-offs: usually needs anaesthesia, and a temporary stent can cause urinary urgency or mild discomfort until it is removed

Modern laser ureteroscopy has strong, size-dependent results. In one comparative study of upper-ureteric stones, semi-rigid ureteroscopic laser treatment cleared 95.5 percent of stones under 1 cm and 82.6 percent of stones over 1 cm, compared with 92.9 percent and 64.6 percent for ESWL respectively (El-Abd et al., 2021, *Arab Journal of Urology*). Clearance rates differ by stone location, and lower-pole kidney stones in particular can be harder to clear. Reflecting the general pattern, the AUA notes that ureteroscopy is associated with a higher stone-free rate than shock wave lithotripsy (AUA, 2026).

4. Percutaneous Nephrolithotomy (PCNL)

For large or complex stones, PCNL is the most effective option. The surgeon makes a small (roughly 1 cm) cut in the back and passes an instrument directly into the kidney to break up and remove the stone. It is an inpatient procedure, generally with a short hospital stay.

• Best for: large stones (over about 2 cm) and staghorn stones that fill the collecting system

• Upsides: the highest clearance rates for big stones, often in a single procedure

• Trade-offs: more invasive than the alternatives, a short hospital admission, and a slightly higher complication profile

For stones larger than 2 cm, the AUA recommends PCNL as first-line therapy (AUA, 2026).

Comparing the Procedures

This table is a general guide. The procedure that fits you depends on your specific imaging and health profile, which is decided at consultation.

Bangkok Pricing: THB and USD

Bangkok is a well-established destination for stone treatment, with modern lithotripsy and laser equipment and experienced urologists, generally at a fraction of private prices in the US, UK, or Australia. The ranges below are indicative and reflect typical private-hospital and specialist-clinic pricing in Bangkok. Final cost depends on the hospital, stone complexity, anaesthesia, imaging, and whether a stent or overnight stay is needed, so always confirm a written quote at consultation. USD figures use an approximate rate of 32 THB to 1 USD (the rough 2026 level) and will vary with the exchange rate.

These figures are indicative only and not a quote. Public-hospital pricing can be lower, with single-session ESWL sometimes quoted nearer 35,000 THB, while top-tier international hospitals can sit at or above the upper end. Independent medical-travel listings put Bangkok hospital procedure prices broadly in the same territory or higher, for example aggregator sites quoting roughly USD 2,200-3,400 for ESWL and USD 3,900-5,100 for ureteroscopy at Bangkok hospitals. Those packaged medical-tourism prices typically bundle extras such as imaging, anaesthesia, and follow-up, so they tend to run above a local cash price for the procedure alone.

What Drives the Cost

• Procedure type. PCNL and laser ureteroscopy cost more than ESWL because of operating-theatre time, anaesthesia, and disposables.

• Stone size, number, and hardness. Bigger or multiple stones may need longer procedures or more than one session.

• Anaesthesia. General or spinal anaesthesia adds cost compared with light sedation.

• Hospital tier. Flagship international hospitals price above specialist clinics and public hospitals.

• Add-ons. Pre-operative imaging and blood tests, a ureteric stent, the later stent removal, and any overnight stay are sometimes quoted separately. Ask what is and is not included.

Who Is and Is Not a Candidate

Most men with symptomatic stones can be treated effectively, but the right procedure varies, and some situations call for caution or a change of plan.

ESWL may not be suitable if you:

• Are pregnant (ESWL is not used in pregnancy)

• Take blood thinners or have an uncorrected bleeding disorder

• Have an active, untreated urinary infection

• Have a very large, very dense, or lower-pole stone where success is likely to be low

• Have an uncontrolled aneurysm near the treatment area, or certain anatomical issues below the stone that would stop fragments passing

Ureteroscopy and PCNL considerations. These require anaesthesia, so your overall fitness matters, and any active infection is usually treated first, sometimes by placing a temporary stent to drain the kidney before the definitive procedure. Bleeding disorders and certain anatomy may shift the recommended approach.

A consultation is required. Choosing between watchful waiting, ESWL, laser ureteroscopy, and PCNL, and prescribing any medication, depends on an in-person assessment and current imaging. The plan that suits one man may be wrong for another with a stone of the same size.

Recovery, Step by Step

Recovery depends on which route you take. The timelines below are typical, not guaranteed.

Medical management (passing a stone)

• It can take anywhere from a few hours to a few weeks for a stone to pass, with most that are going to pass doing so within a few weeks.

• Expect intermittent waves of discomfort until it clears; stay hydrated and use prescribed pain relief.

ESWL

• Day 1-3: pink-tinged urine and mild aching as fragments move are normal.

• Week 1-2: most fragments pass; a follow-up scan checks for residual stones, and a repeat session is sometimes needed.

Laser ureteroscopy / RIRS

• Day 1-3: mild burning on urination and urinary frequency, often related to the stent.

• Up to stent removal: some urgency or twinges are common until the stent comes out, usually within one to two weeks.

• Most men return to desk work within a few days.

PCNL

• Hospital: usually one to three nights.

• Week 1: rest, with a small dressing on the back wound.

• Weeks 2-3: gradual return to full activity; avoid heavy lifting until cleared.

Across all routes, a follow-up appointment to confirm you are stone-free and to discuss prevention is an important final step.

Results You Can Expect

Successful treatment relieves the pain, clears the obstruction, restores normal urine flow, and protects kidney function. Outcomes are generally very good and depend mainly on stone size, location, and the chosen technique. For upper-ureteric stones, laser ureteroscopy clears the large majority, with reported clearance above 80 percent even for stones over 1 cm and over 90 percent for smaller stones (El-Abd et al., 2021); clearance can be lower for awkwardly placed kidney stones, such as those in the lower pole. PCNL gives the highest clearance for large stones. Because recurrence is common, the long-term result depends heavily on prevention: staying well hydrated, moderating salt and animal protein, and following any stone-specific advice based on the analysis of your stone.

Risks and Red Flags

Stone procedures are generally safe, but no treatment is risk-free. Knowing what is expected versus what is not helps you respond appropriately.

Common, usually minor

• Blood in the urine for a few days

• Aching or colicky pain as fragments pass after ESWL

• Stent-related urgency, frequency, or mild discomfort after ureteroscopy

• Bruising on the skin after ESWL

Less common

• Urinary tract infection

• A fragment lodging in the ureter and needing further treatment

• Bleeding, particularly after PCNL

• Injury to the ureter during ureteroscopy (uncommon)

Seek urgent medical care if you have:

• Fever or shaking chills with stone pain, which may indicate an infected, blocked kidney and is an emergency

• Pain so severe that you cannot keep down fluids or oral pain medication

• Little or no urine output, or signs you may be passing no urine at all

• Heavy bleeding or large clots in the urine

• Persistent vomiting

If you are not producing urine, or you have a fever with one-sided back pain, do not wait for a routine appointment. Go to an emergency department.

Choosing a Safe Clinic in Bangkok

Stone treatment is a medical procedure, and the quality of the team and equipment matters. A few practical checks:

• A urologist leads your care. Stones are managed by urologists; confirm the specialist's credentials and experience with ESWL, laser ureteroscopy, and PCNL specifically.

• Imaging on site. Look for ready access to ultrasound and CT so size and location are measured accurately before any procedure.

• A clear, itemised quote. A trustworthy clinic will tell you what is included (anaesthesia, stent, stent removal, imaging, overnight stay) and what is not, in writing.

• Honest expectation-setting. Be cautious of any promise of a guaranteed single-session cure regardless of stone size; ESWL in particular sometimes needs repeat sessions.

• Follow-up and prevention. Good care includes a post-procedure scan and a prevention plan, not just the procedure itself.

• Language and aftercare. For visitors, confirm English-speaking staff and what happens if you need follow-up after you fly home.

Be wary of pricing that looks far below everything else, vague quotes that omit anaesthesia and imaging, and pressure to commit to a procedure before a CT has confirmed the stone.

Booking a Consultation

If you are having stone symptoms, or you have passed a stone before and want a prevention plan, the first step is a urology consultation with current imaging. Treatment choice, prescriptions such as tamsulosin, and any procedure all require an in-person medical assessment. Menscape offers private, male-focused urology consultations in Bangkok with same-week appointments and clear, itemised pricing. If your symptoms are severe, especially fever with back pain or an inability to pass urine, seek emergency care first.

Frequently Asked Questions

How do I know if my pain is a kidney stone and not something else?

The classic pattern is sudden, severe pain on one side of the lower back that comes in waves and may spread toward the groin or, in men, the testicle, often with blood in the urine and nausea. That said, several other conditions can mimic it, so a urine test and imaging (usually ultrasound or a non-contrast CT) are needed to confirm a stone. Seek urgent care if pain comes with fever, which can signal an infected, blocked kidney.

Will a kidney stone pass on its own?

Often, yes, if it is small and sitting low in the ureter. For stones in the lower ureter, those under about 5 mm pass spontaneously in roughly 71 to 98 percent of cases, while those in the 5 to 10 mm range pass on their own about 25 to 53 percent of the time. Stones higher up or in the kidney pass less reliably, and any stone that blocks the kidney or causes infection usually needs a procedure. Imaging measures the size and location, which best predict whether waiting is reasonable.

How long does it take to pass a kidney stone?

It varies from a few hours to a few weeks. Smaller stones lower in the ureter tend to pass faster. Drinking enough fluid helps, and a doctor may prescribe an alpha-blocker such as tamsulosin to relax the lower ureter and improve the chance of passage for suitable stones. If weeks pass without progress, or pain worsens, your urologist may recommend treatment.

Which kidney stone treatment is best?

There is no single best option; it depends on the stone. Small stones may just need fluids and time. ESWL (shock waves) suits smaller kidney and upper-ureter stones. Laser ureteroscopy (RIRS) has high success for ureteric and medium kidney stones and for harder stones. PCNL is first-line for large stones over about 2 cm. A urologist matches the method to your stone size, location, and hardness on imaging.

How much does kidney stone treatment cost in Bangkok?

As an indicative guide, ESWL is often around 50,000 to 90,000 THB per session, laser ureteroscopy around 90,000 to 200,000 THB, and PCNL around 150,000 to 320,000 THB, with consultation and a CT scan typically adding a few thousand baht each. At roughly 32 THB to 1 USD in 2026, that is about USD 1,560 to 2,810 for ESWL, USD 2,800 to 6,250 for laser ureteroscopy, and USD 4,690 to 10,000 for PCNL, generally well below US, UK, and Australian private prices. Costs vary by hospital tier, stone complexity, anaesthesia, and whether a stent or overnight stay is needed, so confirm a written quote at consultation.

Is ESWL or laser surgery more effective?

For larger stones, laser ureteroscopy generally clears more stones. In one comparative study of upper-ureteric stones, ureteroscopic laser treatment cleared about 83 percent of stones over 1 cm versus about 65 percent for ESWL, while for stones under 1 cm both were high (around 96 percent versus 93 percent). ESWL has the advantage of being non-invasive, but it may need more than one session. The AUA notes ureteroscopy has a higher stone-free rate overall.

Can kidney stones be dissolved with medication?

Only some types. Uric acid stones can sometimes be dissolved by making the urine less acidic with prescribed medication, which is one reason stone analysis is useful. Calcium oxalate, struvite, and cystine stones do not dissolve with drugs and are managed by passing them or removing them. Any dissolution therapy needs to be prescribed and monitored by a doctor.

Do kidney stones come back, and how do I prevent them?

Recurrence is common, which is why prevention matters. The most effective steps are drinking enough fluid to keep your urine pale, moderating salt and animal protein, and being cautious with very high-oxalate foods if you form calcium oxalate stones. Sending any passed or removed stone for analysis lets your urologist tailor advice to your stone type, and blood and urine testing can uncover correctable causes.

Is treatment painful, and how long is recovery?

Procedures are done under sedation or anaesthesia, so they are not painful at the time. Afterward, ESWL can cause a few days of aching as fragments pass, ureteroscopy often involves temporary stent-related discomfort until the stent is removed within a week or two, and PCNL involves a short hospital stay and a couple of weeks before full activity. Most men return to desk work within a few days of ESWL or ureteroscopy.

References

• NIDDK, Kidney Stones: Definition & Facts (lifetime prevalence 11% men, 6% women; recurrence)

• NIDDK, Kidney Stones: Treatment (shock wave lithotripsy, ureteroscopy, PCNL, hydration, medicines)

• American Urological Association, Surgical Management of Kidney and Ureteral Stones Guideline (URS vs SWL; PCNL first-line >2 cm; CT before PCNL)

• El-Abd et al., 2021, Arab Journal of Urology, ESWL vs semi-rigid ureteroscopic lithotripsy stone-free rates for upper-ureteric stones by stone size

• Bos & Kapoor, 2014, Canadian Urological Association Journal, Medical expulsive therapy; spontaneous passage rates for distal ureteral stones by size; tamsulosin