Go through these in order and stop at the first one that applies. If you are reading this for someone else, answer for them.
1
Is any of this happening now?
Call 911
Go to an emergency department if you cannot pass urine despite a painful, swollen feeling in your lower abdomen.
Also seek emergency help for new confusion, fainting, severe breathing difficulty, or rapidly worsening illness.
Other emergency signs, for anyone
Someone who is struggling to breathe, gasping, choking, or cannot get words out
Someone who has chest pain, tightness or pressure lasting more than a few minutes
Someone who has sudden weakness or drooping on one side of the face or body, slurred speech, or sudden confusion
Someone who is unconscious, or cannot be woken
Someone who is bleeding heavily and it will not stop with firm pressure
Someone who has had a seizure that will not stop, or does not wake up afterwards
Someone who has lips or skin that look pale, blue, grey or blotchy
Someone who you believe has taken an overdose or swallowed something poisonous
2
Is any of this happening?
Be seen today
Seek urgent same-day medical advice if nighttime urination occurs with:
Fever, shaking chills, or pain in your side or back
Visible blood in your urine
New vomiting, marked weakness, or unusual drowsiness
Extreme thirst with much larger amounts of urine than usual
Arrange follow-up sooner if you also have a weak stream, leakage, persistent burning, leg swelling, strong thirst, or significant daytime sleepiness.
3
Does any of this apply?
Book an appointment
Book a routine appointment if the problem continues for several weeks, regularly interrupts your sleep, or has no clear explanation.
Every sign above is quoted from the sofidex article on Urinating more at night. If you are not sure, err upward — it is always reasonable to be checked.