Bladder and prostate cancer: what to know

Bladder cancer starts in bladder tissue. Prostate cancer develops in the gland below the bladder that surrounds part of the urethra. They are separate diseases, although their symptoms and care pathways can overlap.

Blood in the urine is a recognised presentation of bladder cancer, while prostate cancer may present with a weak stream, difficulty starting, frequent urination, or no urinary symptoms at all. These changes also occur with non-cancerous conditions, so symptoms alone cannot identify which organ is involved.

Assessment may include a medical history, urine and blood tests, examination, imaging, or a camera examination of the bladder. A biopsy is used when tissue must be examined to confirm cancer. The cancer type, extent, general health, and personal priorities guide treatment.

Arrange a medical assessment for visible blood in urine, persistent urinary changes, pelvic discomfort, or unexplained bone pain. Note when the change began, whether urine contains clots, and any medicines you take, including blood thinners.

If cancer is diagnosed, ask which organ and cell type are involved and whether it remains localised or has spread. Options can include surgery, radiotherapy, medicines, or monitoring in selected prostate cancers. Treatment for one cancer is not automatically suitable for the other.

Seek urgent care if you cannot pass urine, pass heavy bleeding or clots, feel faint, or develop severe lower abdominal pain. New leg weakness, numbness around the groin, loss of bladder or bowel control, or severe worsening back pain also needs immediate assessment because nerves around the spinal cord may be under pressure.

Ask: Which tests will distinguish a bladder problem from a prostate problem? If a biopsy is recommended, how will the result affect treatment? What effects could treatment have on urination, sexual function, and bowel function? Who should I contact if symptoms change between appointments?