About the topic
Urinary retention means the bladder does not empty properly. It can develop gradually, with a weak stream, small frequent amounts or leakage, or occur suddenly with inability to pass urine and lower abdominal pain or swelling. Acute retention is an emergency that needs assessment immediately.
What to do now
- If you suddenly cannot urinate, arrange emergency care now rather than trying home remedies.
- Tell the team when you last passed urine and about pain or swelling.
- Bring your medicine list and mention recent surgery or changes in treatment.
Symptoms & signs
- Sudden inability to pass urine, often with lower abdominal pain or swelling.
- Slow flow, difficulty starting or frequent small amounts with gradual retention.
- Feeling incompletely empty or leaking urine; retention may also be painless.
When to speak with a clinician: Difficulty starting, slow flow, frequent small amounts or persistent incomplete emptying need a medical review even without pain. Gradual retention can cause harm without obvious symptoms.
Food & nutrition
Sudden retention is an emergency. Food cannot relieve the obstruction; individual fluid instructions take priority over general hydration advice.
Foods & nutrition to follow
- During urgent assessment, follow the team’s instructions about food and fluids.
- After assessment, include fibre-rich foods if advised to prevent constipation.
Foods to limit or avoid
- Do not force large drinks in an attempt to flush out a blocked bladder.
- Avoid delaying emergency care to eat, drink or try a home remedy.
About this guide
General adult health information; it does not diagnose your symptoms or replace individual medical advice. Follow any plan your treating team has given you.
Further reading from the clinical sources used for this guide: