Symptom is retention. Inability to urinate is a symptom called urinary retention. Can be caused by urinary tract blockage by an enlarged prostate, massive constipation, bladder infection, bladder stone etc. Associated symptom is pelvic/lower abdominal pain. Other symtoms can be constipation, blood in urine or fever.
Retention. Usually have severe pain, but not always....Some pts may not feel the bladder when it's full....Signs an be frequency and urgency too....Signs that you are not emptying the bladder well..