Nursing care
Urinary retention nursing diagnosis: causes, evidence and interventions that match
Written and reviewed by Nicole Ramirez, BSN, RN, CMSRN · 4 min read · Updated November 2026
Short answer
Urinary retention is a nursing diagnosis for a patient whose bladder does not empty fully or at all. It is related to obstruction such as an enlarged prostate, nerve damage, anticholinergic or opioid medicines, or anesthesia, and evidenced by a distended bladder, inability to void, small frequent voids, or a high postvoid residual on a bladder scan.
Related factors and the action that targets each one
In NANDA-I terms, the bladder empties incompletely or not at all. NIDDK groups the causes into blockage, nerve problems, medicines, and surgery or anesthesia. The cause decides the intervention, so name it in the statement. Writing related to benign prostatic hyperplasia alone is acceptable in some programs, but adding the mechanism, such as bladder outlet obstruction, shows the instructor you know why the urine is not leaving.
| Related factor | As evidenced by | Nursing intervention | Rationale |
|---|---|---|---|
| Enlarged prostate or urethral stricture | Weak stream, hesitancy, straining | Bladder scan, report, insert or assist with catheter per orders | Outflow is blocked, so voiding techniques alone may not empty the bladder |
| Anticholinergic, opioid or antihistamine medicines | Onset after a new drug, no urge despite intake | Review the medication list with the prescriber or pharmacist | These drug classes interfere with the nerve signals that empty the bladder |
| Anesthesia or pelvic surgery | No void hours after surgery, lower abdominal swelling | Privacy, upright position, scan if no void within the unit's time limit | Anesthesia effects and swelling commonly cause temporary retention |
| Nerve damage (diabetes, multiple sclerosis, spinal cord injury) | Frequent small voids, leakage, high residual | Timed voiding, double voiding, intermittent catheterization teaching | A weak or poorly signaled bladder needs a schedule and help emptying |
| Severe constipation | Hard stool, no bowel movement for days | Bowel regimen, report impaction | A full rectum presses on the bladder outlet |
Postvoid residual numbers worth knowing
A bladder scan or catheter after voiding gives the postvoid residual. MSD Manuals gives under 50 mL as normal, under 100 mL as acceptable in people over 65, and over 100 mL as abnormal in younger patients. Put the number in the statement, because a residual is the clearest proof of retention you can document.
Hypothetical statement for a 71-year-old man on day 1 after knee surgery, receiving opioid analgesia: Urinary retention related to opioid effect and enlarged prostate as evidenced by no void for 8 hours, palpable suprapubic swelling, lower abdominal discomfort and a bladder scan volume of 650 mL. Goal: voids with a postvoid residual under 100 mL before discharge.
Leakage can mean the bladder is too full, not too active
NIDDK describes chronic retention as quiet: it may cause few symptoms, or frequent small voids, a weak stream, a feeling of not emptying and leakage without warning. A student who sees leakage and writes urinary incontinence has labeled the overflow, not the cause. Scan before choosing; a large residual in a leaking patient points to retention.
Acute retention looks different. NIDDK lists sudden inability to void with lower abdominal pain, often severe, an urgent need to go and visible swelling. That is the one to report promptly, since MSD Manuals states acute retention is treated with urethral catheterization. Chronic retention is managed over time with medicines, procedures, or intermittent catheterization.
Evaluating the plan after the catheter comes out
Evaluation is a voiding trial with numbers. Record the time and volume of each void and scan afterward. A patient who voids small amounts every hour with a residual still above 100 mL has not met the goal, even though urine is coming out.
NIDDK lists timed voiding and double voiding, which means waiting a short time after urinating and trying again, as self-care methods. Teach these to patients with weak bladder muscle, and teach clean intermittent self-catheterization when it is prescribed. Teach the patient to report fever, cloudy urine or a return of lower abdominal swelling and pain, since any of these needs the provider to reassess.
Sources and further reading
Symptoms & Causes of Urinary Retention - NIDDK. Acute vs chronic symptoms including leakage without warning; causes grouped as blockage, nerve problems, medicines, and surgery or anesthesia.
Urinary Retention - MSD Manual Professional Edition. Definition; anticholinergic drugs and constipation as causes; postvoid residual under 50 mL normal, under 100 mL acceptable over 65, over 100 mL abnormal in younger patients; catheterization for acute retention.
Treatment of Urinary Retention - NIDDK. Intermittent and indwelling catheterization; timed voiding and double voiding.
The next step on this is the same as on everything else here: answer questions and read the rationales. Our renal and genitourinary practice questions are the closest set to what this page covers.
Common questions
What is urinary retention related to?
Blockage (enlarged prostate, urethral stricture, prolapse, constipation), nerve problems (diabetes, multiple sclerosis, spinal cord injury, Parkinson disease), medicines with anticholinergic effects or opioids, and anesthesia or pelvic surgery.
How do you write urinary retention as evidenced by?
Use measurable findings: no void for a stated number of hours, bladder distention on palpation, suprapubic discomfort, small frequent voids, dribbling, and a bladder scan or postvoid residual volume in mL.
What are nursing interventions for urinary retention?
Bladder scanning, privacy and an upright position to void, timed and double voiding, medication review, bowel regimen, catheterization per orders, intake and output, and teaching which signs of infection to report.