Bladder cancer affects the tissues of the bladder. The bladder is an organ in the body that collects urine from the kidney and stores it until you can pass it out. It can expand to accommodate a lot of urine.
This condition is more common in men than women. According to the National Institutes of Health, around 45,000 men are diagnosed with the disease yearly. In women, the figure is much lower at 17,000. 
There are three types of bladder cancer, the most common of which is transitional cell carcinoma. The cause of bladder cancer is not known, but factors like smoking can increase your predisposition to it. According to the American Cancer Society, it is linked to around half of reported cancer cases. 
If you think you might have bladder cancer, here are some signs to look out for.
Frequent urination may also be a sign of bladder cancer.  What constitutes frequent urination differs from person to person. You may notice that you have to urinate more times a day than usual, especially at night.
Many other health conditions may also cause frequent urination, such as diabetes. If you notice your frequency of urinating has increased, you should see a doctor for a diagnosis. They will first try to rule out other more common causes before considering bladder cancer.