After radiotherapy for prostate cancer

Radiotherapy can irritate tissues around the prostate even after the final session. You may pass urine more often, feel urgency or burning, have a weaker stream, or wake at night to urinate. Loose stools, rectal discomfort, tiredness, and changes in erections or ejaculation can also occur. The pattern depends on the radiotherapy method, other treatment, and your health before treatment.

Some effects improve as inflammation settles, while others emerge later and need assessment rather than self-treatment. Follow-up commonly includes symptom review and prostate-specific antigen blood tests. A single result is interpreted alongside earlier results, treatment details, and the time since radiotherapy; the trend matters more than an isolated reading.

Take prescribed urinary or bowel medicines as directed and check before adding supplements or over-the-counter remedies. Keep a brief record of urine flow, nighttime trips, bowel changes, pain, and any blood you notice. This gives the team specific information for deciding whether you need urine tests, examination, medication adjustment, or another investigation.

Build activity back gradually, balancing movement with rest. Drink enough to avoid dehydration unless you have a fluid restriction, and ask which foods or drinks might aggravate your bladder or bowel. Sexual difficulties are a legitimate follow-up concern; options can include medicines, devices, specialist rehabilitation, or counselling depending on the cause and your preferences.

Get urgent medical help if you cannot pass urine, have heavy or persistent bleeding, pass clots, develop severe pelvic or abdominal pain, become faint or confused, or cannot keep fluids down. Contact your cancer team promptly for fever, worsening burning with urination, increasing bowel pain, persistent diarrhoea, black stools, new leg weakness, or loss of bladder or bowel control. These problems need assessment even if a routine visit is already booked.

Confirm when prostate-specific antigen will be checked, how results will be compared over time, and which symptoms should trigger an earlier appointment. Ask whether your current urinary, bowel, energy, or sexual changes fit the expected pattern; which treatments might help; and whether pelvic-floor, continence, dietetic, or sexual-health support suits your needs.