Final answer:
The two main risk factors for bladder cancer are smoking tobacco and exposure to certain environmental chemicals, with occupational exposure and arsenic in drinking water also being noteworthy. Lifestyle choices and chronic bladder conditions are additional factors that may influence the risk.
Step-by-step explanation:
The two biggest risk factors for bladder cancer include smoking tobacco and exposure to certain chemicals found in the environment, particularly those used in the rubber, chemical, and leather industries. Another significant environmental risk factor is exposure to arsenic in drinking water. Additionally, chronic bladder inflammation due to infections, bladder stones, or urinary catheters, and previous treatment with anti-cancer drugs such as cyclophosphamide also raise the risk.
Based on the information provided, it is also important to consider air pollution as it is mentioned as an environmental risk that increases the chance of bladder cancer. Although not the top two, it is nonetheless relevant to the broader conversation about environmental factors impacting cancer risk.
Lifestyle choices and occupational exposures are significant risk factors for cancer, including bladder cancer. Avoiding tobacco use and minimizing harmful occupational exposures can help reduce the risk of bladder cancer.