Your condition can be frustrating, unpredictable and depressing. But you can take action! Record your experiences, feelings, your treatment regimen, and your body's reaction. This volume consists of 150 plain college-ruled pages. Bladder cancer is where a growth of abnormal tissue, known as a tumour, develops in the bladder lining. In some cases, the tumour spreads into the surrounding muscles.The most common symptom of bladder cancer is blood in your urine, which is usually painless.If you notice blood in your urine, even if it comes and goes, you should visit your GP, so the cause can be investigated.