Go through these in order and stop at the first one that applies. If you are reading this for someone else, answer for them.
Call emergency services for severe uncontrolled bleeding, fainting, confusion, or other signs of a serious immediate illness.
If you have been treated for urethral cancer, contact your cancer team promptly about new bleeding, worsening urinary symptoms, unexplained weight loss, persistent pelvic pain, or a new groin lump.
Do not wait for the next routine follow-up visit.
Seek urgent medical care if you cannot pass urine, especially with increasing lower abdominal pain.
Heavy bleeding, large blood clots, or fever with difficulty urinating also needs urgent assessment.
Arrange a routine medical appointment if you notice blood in your urine, urethral bleeding or discharge, a persistent weak stream, pain when urinating, or a new lump near the urethra.
These symptoms usually have causes other than cancer, but they should be checked if they persist or recur.
And for anyone, someone who:
Every sign above is quoted from the sofidex article on Urethral cancer. If you are not sure, err upward — it is always reasonable to be checked.