What are the first signs of bladder cancer?

Blood in the urine may be visible or found during a urine test, and it may come and go. Bladder cancer can also cause irritation of the bladder lining, leading to frequency, urgency, or discomfort while passing urine. These symptoms also occur with infections, stones, and other urinary conditions, so a symptom alone cannot identify the cause.

A clinician may ask when the change began, whether it recurs, and whether you have pain, fever, or difficulty passing urine. Assessment can include urine testing and a closer look inside the bladder with cystoscopy.

Arrange a medical assessment for blood in the urine or a persistent change in urination, even if the symptom settles. Bring a list of medicines and note any visible blood, clots, pain, or change in your urine pattern. Testing may help distinguish infection from a bladder condition and guide further care.

Seek urgent care if you cannot pass urine, pass large clots, have severe lower abdominal or side pain, feel faint, or develop fever with urinary symptoms. These features can signal blockage, bleeding, or infection requiring prompt treatment.

Ask what could explain the urinary change, which tests are appropriate, and whether cystoscopy is needed. If bladder cancer is found, ask how its depth and spread affect choices such as bladder-preserving treatment, bladder removal surgery, chemotherapy, immunotherapy, or intravesical BCG therapy.