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What Is Prostate Artery Embolization?

Prostate artery embolization is a minimally invasive treatment for lower urinary tract symptoms caused by benign prostatic hyperplasia. An interventional radiologist guides a catheter into the arteries supplying the prostate and injects tiny embolic particles to reduce blood flow. The treated prostate tissue gradually shrinks, which can reduce pressure on the urethra and improve urinary symptoms. The procedure treats benign enlargement without surgically cutting away prostate tissue.

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What Is Prostate Artery Embolization?

Prostate artery embolization is a minimally invasive treatment for lower urinary tract symptoms caused by benign prostatic hyperplasia. An interventional radiologist guides a catheter into the arteries supplying the prostate and injects tiny embolic particles to reduce blood flow. The treated prostate tissue gradually shrinks, which can reduce pressure on the urethra and improve urinary symptoms. The procedure treats benign enlargement without surgically cutting away prostate tissue.

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Why Is Prostate Artery Embolization Performed?

The procedure can be considered for patients with bothersome urinary symptoms from benign prostatic hyperplasia who want or need an alternative to medication or transurethral surgery. The American Urological Association states that PAE can be offered for lower urinary tract symptoms due to BPH when performed by appropriately trained clinicians after discussion of risks and benefits. Evaluation generally includes symptom assessment, prostate imaging, medication review, kidney function, and exclusion of other causes of urinary obstruction or bleeding. Prostate cancer, urethral stricture, bladder dysfunction, vascular anatomy, or other conditions can change whether embolization is appropriate.

How Is Prostate Artery Embolization Performed?

The interventional radiologist places a catheter through an artery in the wrist or groin and advances it under X-ray guidance into the pelvic arteries. Angiography and often cone-beam computed tomography are used to identify the prostatic arterial branches and nearby vessels that must be protected. Microscopic particles are injected into the prostatic arteries until blood flow to the targeted tissue is substantially reduced. Both sides of the prostate are generally treated when the anatomy allows safe catheterization.

What Is Recovery Like After Prostate Artery Embolization?

PAE is commonly performed without a hospital stay or with a short observation period. Temporary pelvic discomfort, urinary frequency, urgency, burning, blood in the urine or semen, and fatigue can occur during the first several days. Urinary symptoms improve gradually as the prostate shrinks rather than immediately at the end of the procedure. Follow-up assesses symptom scores, urinary flow, medication needs, prostate size, and any complications or persistent obstruction.

What Are the Risks and Complications?

Possible complications include bleeding or bruising at the catheter site, urinary tract infection, temporary urinary retention, pelvic pain, and contrast-related or vascular complications. Embolic particles can rarely reach nontarget vessels and injure tissue in the bladder, rectum, penis, or other pelvic structures. Radiation exposure is part of the fluoroscopic procedure, and iodinated contrast can be a concern in patients with severe allergy or impaired kidney function. Symptoms can persist or recur, and some patients later require another BPH treatment.

Frequently Asked Questions About Prostate Artery Embolization

Is prostate artery embolization surgery?

It is a minimally invasive endovascular procedure rather than an operation that removes prostate tissue. A catheter is used to block selected prostatic arteries.

Does PAE remove part of the prostate?

No. The procedure reduces arterial blood flow so part of the enlarged gland shrinks gradually over time.

How soon do urinary symptoms improve after PAE?

Improvement is gradual rather than immediate. Some patients notice changes within weeks, with further improvement as prostate volume decreases over the following months.

Can BPH symptoms return after prostate artery embolization?

Yes. Symptoms can persist or recur, and repeat embolization or another medical or surgical BPH treatment can be needed later.

References

Management of Lower Urinary Tract Symptoms Attributed to Benign Prostatic Hyperplasia (BPH): AUA Guideline Amendment 2023. PubMed. https://pubmed.ncbi.nlm.nih.gov/37706750/. Date Accessed September 11, 2026.

Society of Interventional Radiology (SIR) 2026 Practice Guidance Document for Prostatic Artery Embolization. PubMed. https://pubmed.ncbi.nlm.nih.gov/42223385/. Date Accessed September 11, 2026.

Prostatic Artery Embolization. Johns Hopkins Medicine. https://www.hopkinsmedicine.org/health/treatment-tests-and-therapies/prostatic-artery-embolization. Date Accessed September 11, 2026.

Prostatic Artery Embolization for Benign Prostatic Hyperplasia: Patient Evaluation, Anatomy, and Technique for Successful Treatment. PubMed. https://pubmed.ncbi.nlm.nih.gov/31348735/. Date Accessed September 11, 2026.

Efficacy and safety of prostatic artery embolization for benign prostatic hyperplasia: a systematic review and meta-analysis of randomized controlled trials. PubMed. https://pubmed.ncbi.nlm.nih.gov/33449181/. Date Accessed September 11, 2026.