Transurethral resection of the prostate remains a reference operation because it directly removes obstructing tissue and has decades of outcome data. Transurethral incision of the prostate is a more focused operation for selected small glands and bladder-neck obstruction.
The practical distinction is not that TUIP is a “lighter TURP.” It treats a different anatomic problem. Accurate volume and outlet assessment should come before the procedure name.
TURP: direct, established relief
A resectoscope removes prostate chips from inside the urethra. TURP is commonly used for 30–80 mL glands, though experienced surgeons may extend beyond that range. A median lobe can be directly resected, and tissue is available for pathology.
Bipolar TURP uses saline irrigation and has largely reduced the classic dilutional electrolyte risk associated with monopolar systems. Bleeding, clot retention, infection, stricture, bladder-neck contracture, temporary urgency, and urinary leakage remain recognized risks.
TUIP: a small-gland option
TUIP makes one or more incisions through a tight bladder neck or small obstructing prostate, usually without removing much tissue. It is most appropriate when the gland is roughly 30 g/mL or smaller and no substantial middle lobe is present.
Compared with TURP, TUIP can mean less bleeding and a lower probability of dry ejaculation, but it may carry a greater chance of another procedure. It is a poor substitute when a larger volume of adenoma is the true obstruction.
Sexual function and continence
Standard TURP commonly causes retrograde or dry ejaculation because the bladder neck and ejaculatory pathway are altered. Erections are usually preserved, although erectile dysfunction can occur. TUIP generally preserves ejaculation more often but does not eliminate risk.
Temporary urgency or stress leakage can occur after either procedure. Persistent incontinence is uncommon in routine cases but becomes more relevant with prior radiation, neurologic disease, sphincter injury, or repeat outlet surgery.
Recovery and follow-up
A catheter is usually left after TURP and may be used after TUIP. Blood, burning, frequency, urgency, and a variable stream are expected early. Patients need clear instructions for clot retention, fever, inability to urinate, heavy bleeding, and medication resumption.
Outcome assessment should include symptoms and, when clinically useful, flow and residual urine. Persistent urgency may reflect bladder remodeling rather than persistent obstruction; a weak stream may reflect residual obstruction, stricture, or detrusor weakness.
Capability questions
- Is my gland volume and middle-lobe anatomy better suited to TUIP, TURP, or enucleation?
- Will the TURP be bipolar or monopolar, and why?
- What are your transfusion, clot-retention, stricture, and retreatment rates?
- How likely is dry ejaculation with the exact technique you plan?
- Would HoLEP or Aquablation change durability or sexual outcomes enough to justify referral?
Bottom line
TURP remains a powerful, widely available reference operation. TUIP is a precise small-gland treatment—not a universal lower-burden alternative.
Sources and evidence
Open the original guideline, regulatory record, or study. Evidence was last checked August 14, 2026.
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AUA Guideline (2026) Part III: Procedural/Surgical Management The Journal of Urology · professional guideline · 2026
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Disease Management — Management of Non-neurogenic Male LUTS European Association of Urology · professional guideline · 2026