Classic signs of postoperative urinary retention?

Multiple signs : The signs of postop urinary retention include inability to urinate and increasing discomfort in the lower abdomen and pelvis. Common reasons include lack of walking, narcotic pain medication which may cause constipation too, or neurological injury from pelvic, spine, or neurologic surgery. Treatment is urethral catheterization, Alpha blocker medication for some men, and followup w urologist.