When to worry about difficulty passing urine with bladder cancer

Bladder cancer can irritate the bladder and change urinary flow. Difficulty starting, a weaker stream, urgency, frequent urination, burning, or blood may occur. Treatment, swelling, clots, infection, or a narrowing in the urinary passage can also affect how urine leaves the body.

The symptom needs assessment rather than interpretation at home. Your care team may ask about its timing, inspect urine tests, review treatment, and decide whether imaging, a camera examination, or another test is appropriate.

Tell your cancer team or doctor about any new or worsening change in flow, even if it comes and goes. Record blood, clots, pain, burning, urgency, fever, and how much urine you can pass. Take medicines exactly as prescribed and do not delay a planned review because symptoms briefly settle.

If you have a urinary catheter or recent procedure, report poor drainage, leakage, new pain, or cloudy urine according to the instructions given by your care team.

Seek urgent care if you cannot pass urine, the lower abdomen becomes painful or swollen, you pass substantial blood or clots, or urinary symptoms come with fever, chills, vomiting, or severe weakness. Sudden confusion or severe side or back pain also needs prompt assessment.

Ask whether the change could relate to the bladder tumour, treatment, infection, or a blockage. Ask which symptoms should be phoned through immediately, whether you need a urine test, and how your urinary function will be monitored.