2. Bladder Cancer : Causes and symptoms
Although the exact cause of bladder cancer is not known, smokers are twice as likely as nonsmokers to get the disease. Hence, smoking is considered the greatest risk factor for bladder cancer. Workers who are exposed to certain...
Healthline.com (OMS Preferred Provider)

3. Bladder Cancer | Causes, Symptoms, Treatment | PDRHealth
Bladder cancer is a tumor (lump) that is in the bladder. The bladder is a round, balloon-like, hollow organ located at the lower part of the abdomen (pelvis). The bladder collects urine from the kidneys and holds...
pdrhealth.com