What are Bladder Cancer Risk Factors?

Published Aug 26, 2025

When most people think about cancer, they focus on symptoms or treatment. But it’s just as important to understand bladder cancer risk factors, the conditions and exposures that make someone more likely to develop the disease. Knowing them means being one step ahead, whether that’s avoiding certain chemicals, quitting smoking, or having the right conversation with a doctor.

At Immunity Therapy Center, we work with patients every day who want complementary support alongside their conventional care, therapies that encourage healthier habits and help the body stay strong throughout bladder cancer natural treatment.

What Is a Risk Factor?

A risk factor is anything that raises the chance of getting a disease such as cancer. Every type of cancer has its own set of risk factors, and bladder cancer is no exception. Having one or even several factors doesn’t mean a bladder cancer diagnosis is inevitable; many people with risk factors never get bladder cancer, while others diagnosed with bladder cancer have few or no known risk factors. Experts generally divide bladder cancer risk factors into two groups: things you can change, and things you can’t.

Risk Factors You Can Change

Some risk factors for bladder cancer are within your control. Addressing them won’t guarantee you’ll never develop the disease, but it can meaningfully lower your risk of bladder cancer over time.

• Smoking: cigarettes, cigars, and other tobacco expose the bladder lining to harmful chemicals called aromatic amines, carried through urine. Smoking is considered the single most important risk factor for bladder cancer, and it’s thought to cause about half of all bladder cancers.¹ Quitting can significantly reduce the risk of developing bladder cancer.
• Occupational and chemical exposure: jobs in industries like rubber, dye, textiles, printing, or those involving diesel exhaust expose workers to certain chemicals known to cause cancer, which may increase the risk of bladder cancer over time.¹
• Arsenic in drinking water: in some regions, long-term exposure to arsenic in well water has been linked to bladder cancer, though it’s not a major concern for most people on public water systems.¹
• Not drinking enough fluids: people who stay well hydrated tend to have lower rates of bladder cancer, possibly because they empty their bladder more often, giving harmful chemicals less time to sit in contact with bladder cells.

Risk Factors You Can’t Change

Other risk factors that bladder cancer patients face can’t be modified. These don’t directly cause bladder cancer, but they raise the chance that abnormal cells develop over time. In fact, the exact cause of bladder cancer often isn’t fully understood, which is one reason doctors focus on managing risk rather than pinpointing a single cause.

• Age: the risk of bladder cancer increases with age; about 9 out of 10 people with bladder cancer are older than 55¹
• Sex: men are diagnosed with bladder cancer more often than women, though both should watch for bladder cancer symptoms like blood in the urine
• Race: white people are about twice as likely to get bladder cancer as Black or Hispanic people, for reasons that aren’t fully understood¹
• Chronic bladder irritation: urinary infections, bladder stones, and long-term catheter use have all been linked to bladder cancer, particularly squamous cell bladder cancer, though it’s not always clear whether they directly cause it
• Personal history of bladder cancer: having had bladder or other urothelial cancer before increases the risk of a new tumor forming elsewhere in the urinary tract, which is why ongoing monitoring matters
• Family history of bladder cancer: having a close relative diagnosed with bladder cancer may signal an increased risk of bladder cancer, since inherited genetic factors can affect how cells repair damage from carcinogens.¹ Some inherited syndromes linked to colorectal cancer, such as Lynch syndrome, can also raise bladder cancer risk.²
• Chemotherapy or radiation: certain chemotherapy drugs and prior pelvic radiation for other cancers can put a person at higher risk of bladder cancer later on¹

Knowing about these non-modifiable risks helps a doctor decide who might benefit from closer monitoring or earlier bladder cancer screening.

Smoking and Bladder Cancer

The strongest link by far is between smoking and bladder cancer. Cigarette smoke contains dozens of chemicals that enter the bloodstream, filter through the kidneys, and eventually collect in the bladder along with urine. Over time, these toxins damage the cells lining the bladder wall, raising the likelihood that a tumor forms.

According to the American Cancer Society and the National Cancer Institute, people who smoke are several times more likely to get bladder cancer than people who don’t.^1,3 It’s not only direct smokers at risk, either. People exposed to secondhand smoke may also face some increased risk. Quitting smoking remains one of the simplest, most effective steps a person can take to lower their risk of getting bladder cancer.

How Holistic Care Can Support Prevention and Risk Management

Risk factors can sound intimidating, but they also point to real opportunities for prevention and support. At Immunity Therapy Center, we believe holistic care isn’t only about cancer treatment after a diagnosis, it’s also about supporting the body’s resilience beforehand and throughout care, alongside whatever a patient’s medical team recommends.

A few examples include:

• Nutrition support: our team often educates patients on foods for bladder cancer and, where appropriate, Gerson Therapy-style nutrition support, encouraging diets rich in vegetables, antioxidants, and anti-inflammatory foods
• Immune support: immunotherapy-based complementary protocols are designed to support the immune system’s own ability to recognize and respond to abnormal cells
• Detoxification support: for patients who’ve had exposure to industrial chemicals or arsenic, detox and IV Chelation therapies may help support the body’s natural ability to clear harmful substances
• Whole-body wellness: integrative approaches like hyperbaric oxygen therapy and stress-reduction practices give patients additional tools to support both body and mind

Every plan is personalized and coordinated alongside a patient’s oncology team, never as a substitute for the surgery, chemotherapy, radiation, or immunotherapy a diagnosis calls for.

Reducing Risk, Finding Support

So, what are the risk factors for bladder cancer? They include smoking, workplace chemical exposure, age, family history, and a handful of factors that can’t be changed. Some of these are within your control, and many aren’t, but understanding the difference empowers people to make informed choices about bladder cancer treatment and have better conversations with their care team.

If you’d like to learn more about what bladder cancer is, the different kinds of bladder cancer, or our holistic therapies for bladder cancer, we are here to support you during alternative cancer treatment or wherever you are in your journey.

Sources:

1. American Cancer Society. Bladder Cancer Risk Factors. cancer.org/cancer/types/bladder-cancer/causes-risks-prevention/risk-factors.html
2. Nassour AJ, Jain A, Hui N, et al. Relative Risk of Bladder and Kidney Cancer in Lynch Syndrome: Systematic Review and Meta-Analysis. Cancers. 2023. ncbi.nlm.nih.gov/pmc/articles/PMC9856836/
3. National Cancer Institute. Bladder Cancer Treatment (PDQ)–Patient Version. cancer.gov/types/bladder/patient/bladder-treatment-pdq

At Immunity Therapy Center, all blog content is created to provide high-quality, unbiased, and reliable health information. Each article is written by experienced medical experts, researched using credible medical sources, reviewed for accuracy, fact-checked, and evaluated by ITC’s medical professionals. Our editorial process is designed to reflect current evidence-based information and uphold strong editorial standards.

Articles also include credible third-party sources, listed at the bottom of each page, so readers can access the original source material directly.