Cancer

Cancer is a group of diseases characterized by uncontrolled growth of tissue cells in the body and the invasion by these cells into nearby tissue and migration to distant sites. Cells are the building blocks of living things.
Cancer grows out of normal cells in the body. Normal cells multiply when the body needs them, and die when the body doesn't need them. Cancer appears to occur when the growth of cells in the body is out of control and cells divide too quickly. It can also occur when cells forget how to die.
There are many different kinds of cancers. Cancer can develop in almost any organ or tissue, such as the lung, colon, breast, skin, bones, or nerve tissue.

Bladder cancer

The bladder is a hollow organ in your lower abdomen that stores urine. Bladder cancer occurs in the lining of the bladder. Symptoms include:
1. Blood in your urine
2. A frequent urge to urinate
3. Pain when you urinate
4. Low back pain
Smoking is a major risk factor for bladder cancer. Exposure to certain chemicals in the workplace is another. People with a family history of bladder cancer or who are older, white or male have a higher risk.