8 Warning Signs of Bladder Cancer You Should Never Ignore

4. Difficulty Urinating or Weak Stream

Bladder cancer can partially block the bladder outlet, making it harder for urine to pass and causing a weak or interrupted stream.

Warning: Do not ignore difficulty urinating, especially if it’s new or worsening over time.

5. Pelvic or Lower Back Pain

Persistent pain or pressure in the pelvic area or lower back (particularly around the flanks) may indicate that the cancer has spread beyond the bladder.

Action Step: This symptom usually appears in more advanced stages — see a healthcare provider immediately.

6. Urgency with No Urine Output

Feeling an urgent need to urinate but producing little to no urine can be a sign of bladder dysfunction or blockage caused by a tumor.

Tip: Keep a bladder diary and share it with your doctor for proper evaluation.

7. Fatigue and Weakness

When cancer progresses, it can cause anemia (low red blood cell count), which leads to constant tiredness, weakness, and sometimes dizziness.

Advice: If fatigue is persistent and accompanied by other urinary symptoms, ask for a full medical checkup.