Kidney Stones May Be Linked To Higher Prostate Cancer Risk

Kidney stones are common and can cause significant pain, urinary symptoms and complications when they obstruct the urinary tract. Some recent research has also explored whether having kidney stones may be associated with a higher risk of prostate cancer. While an association has been reported, this does not mean that kidney stones directly cause prostate cancer.

What Does the Research Suggest?

Research into the relationship between kidney stones and prostate cancer is still developing. Some observational studies have found that men with a history of kidney stones may have a higher likelihood of being diagnosed with prostate cancer.

However, these studies can identify an association but cannot by themselves establish that kidney stones cause cancer. Other factors, including age, metabolic health, inflammation and lifestyle, may also contribute to both conditions.

For this reason, having kidney stones should not be viewed as a diagnosis or prediction of prostate cancer.

Why Might Kidney Stones and Prostate Cancer Be Connected?

Researchers have proposed several possible explanations for the observed association. Chronic inflammation is one area of interest, as inflammation may play a role in both urinary stone disease and the development of certain cancers.

Metabolic factors may also be relevant. Conditions such as obesity, diabetes and dietary patterns can influence kidney stone formation and may also be associated with cancer risk.

More research is needed to determine whether these shared factors explain the relationship or whether other mechanisms are involved.

Does Having Kidney Stones Mean You Are More Likely to Get Prostate Cancer?

Not necessarily. A statistical association does not mean that every man with kidney stones will develop prostate cancer.

Established prostate cancer risk factors include increasing age, family history and certain inherited genetic factors. A history of kidney stones may be worth discussing with a doctor, but it should be considered alongside these better-established risk factors rather than viewed in isolation.

What Are the Early Signs of Prostate Cancer?

Early prostate cancer often does not cause noticeable symptoms, which is why symptoms alone cannot reliably detect the disease. When symptoms do occur, they can include changes in urination, difficulty starting or maintaining urine flow, increased urinary frequency, blood in the urine or semen, and erectile difficulties.

These symptoms can also occur with non-cancerous prostate conditions. Understanding the early signs of prostate cancer can help men recognise changes that may warrant medical assessment, but symptoms should not be used to diagnose cancer themselves.

Why Is Prostate Health Monitoring Important?

Men with urinary concerns or relevant risk factors may benefit from discussing prostate health with their doctor. Assessment can involve a medical history, physical examination and, where appropriate, a prostate-specific antigen (PSA) blood test.

Screening decisions should be individualised because PSA testing has potential benefits as well as limitations. A raised PSA level does not necessarily mean cancer is present, while a normal result does not completely exclude it.

How Are Kidney Stones Diagnosed?

Kidney stones are usually assessed based on symptoms, medical history and appropriate investigations. Depending on the circumstances, doctors may use urine tests, blood tests and imaging such as ultrasound or CT scans.

Identifying the stone’s size and location is important because these factors can influence whether it is likely to pass naturally or require treatment.

What Are the Treatment Options for Kidney Stones?

Treatment depends on the stone’s size, location, symptoms and whether it is causing obstruction or infection.

Small stones may sometimes pass naturally with appropriate medical guidance, while larger or problematic stones may require an intervention. Common treatment options for kidney stones include:

• Conservative management: Smaller stones may be monitored while the patient maintains appropriate fluid intake and receives pain relief when needed.
• Shock wave lithotripsy: Shock waves are used to break a stone into smaller fragments that can pass through the urinary tract.
• Ureteroscopy: A small instrument is passed through the urinary tract to locate and treat the stone, often using a laser to break it into smaller pieces.
• Percutaneous nephrolithotomy: Larger or more complex kidney stones may sometimes be removed through a small opening in the skin.

The most appropriate approach depends on the individual clinical situation rather than the presence of kidney stones alone.

When Should Kidney Stones Be Treated Urgently?

Severe or worsening pain, fever, chills, vomiting, difficulty passing urine or other concerning symptoms may require prompt medical attention.

An obstructed urinary tract combined with an infection can become a serious medical problem. Patients with these symptoms should seek medical assessment rather than attempting to manage the condition at home.

Can Kidney Stones Be Prevented?

The risk of developing another kidney stone can sometimes be reduced by addressing factors that contribute to stone formation. Adequate fluid intake is generally important, while dietary recommendations may depend on the type of stone and the individual’s health.

For people who repeatedly develop stones, further testing may help identify contributing metabolic or dietary factors and guide prevention strategies.

What Our Urology Team Says

The possible relationship between kidney stones and prostate cancer is an area of ongoing research. A history of kidney stones does not mean that prostate cancer will develop, but it can be an opportunity to review overall urinary and prostate health, particularly when other risk factors are present.

Men should also avoid assuming that urinary symptoms are caused by kidney stones or an enlarged prostate without appropriate assessment.

Frequently Asked Questions

Can kidney stones cause prostate cancer?

There is currently no evidence that kidney stones directly cause prostate cancer. Some observational research has identified an association between the two conditions, but this does not establish a cause-and-effect relationship.

Should men with kidney stones have prostate cancer screening?

Having kidney stones alone does not automatically mean that prostate cancer screening is required. Screening decisions should consider factors such as age, family history, overall health and individual preferences.

What are the early signs of prostate cancer?

Early prostate cancer may cause no symptoms. When symptoms occur, they can include changes in urination, blood in the urine or semen and erectile difficulties. These symptoms can have other causes, so medical assessment is important.

Can kidney stones be treated without surgery?

Some smaller stones can pass naturally and may be managed with observation, fluids and pain relief under medical guidance. Larger, persistent or obstructing stones may require procedures such as shock wave lithotripsy or ureteroscopy.

Next Steps

A history of kidney stones does not mean prostate cancer will develop. However, discussing urinary symptoms and individual cancer risk factors with a doctor can help determine whether further assessment is appropriate. Prompt treatment is also important when kidney stones cause severe pain, obstruction or signs of infection.