Go through these in order and stop at the first one that applies. If you are reading this for someone else, answer for them.
Seek emergency care now if you cannot pass urine and have increasing pain or swelling in the lower abdomen.
This may be acute urinary retention.
New loss of bladder control or inability to urinate with severe back pain, leg weakness, or numbness around the buttocks or genitals also needs emergency assessment.
These symptoms can indicate pressure on spinal nerves.
Arrange same-day medical care if frequent or urgent urination occurs with:
These features can occur with a kidney infection or another problem needing prompt assessment.
Book a routine appointment if the symptom continues without an obvious reason, keeps returning, disturbs sleep, causes leakage, or affects daily activities.
You should also arrange follow-up for persistent burning, a weak stream, difficulty starting, unusual thirst, or unexplained weight loss.
Every sign above is quoted from the sofidex article on Frequent or urgent urination. If you are not sure, err upward — it is always reasonable to be checked.