In brief
Varicocele is the most common reversible cause of male factor infertility, present in 35-40% of men with primary infertility. The condition causes venous blood pooling, which increases scrotal temperature and promotes oxidative stress, hindering spermatogenesis.
Varicocele embolization is a minimally invasive procedure that uses catheters and tiny coils to close off the dilated veins in the testicles. The procedure is performed under imaging guidance, without open surgery, and takes only about an hour. Most patients return to activity within 24–48 hours, and the treatment may improve pain and improve a man’s fertility.
Varicoceles can cause pain in the scrotum and affect a man’s fertility.
Varicocele Treatment with Testicular Vein Catheterization (Varicocele Embolization)
Vericocele embolization is an advanced minimally invasive technique that allows the treatment of dilated veins in the testicles without the need for open surgery. The procedure is performed as an outpatient procedure under local anesthesia only, and is considered an effective and safe treatment with a short recovery time.
During the treatment, a thin catheter is inserted through the skin into a large vein – usually in the neck or groin -and navigated under the guidance of advanced imaging to the veins of the testicle. A contrast agent is injected using X-rays, allowing the doctor to see the problematic veins precisely and identify the source of the abnormal blood flow. After identifying the enlarged vein, tiny coils and sometimes a special material are inserted through it, which block the problematic vein.
This blockage redirects blood flow to normal venous pathways, thus reducing pressure inside the testicle and swelling in the area.
The entire procedure usually takes about 45-60 minutes. At the end of the procedure, the catheter is removed and the small opening in the skin is closed with only a bandage, without the need for stitches.
Most patients are discharged home the same day, return to normal activities within 24-48 hours, and are asked to avoid lifting heavy weights for several days.
Varicocele embolization is considered as effective as surgery in improving the chances of natural fertility and reducing pain or a feeling of heaviness in the testicles.
Frequently asked questions
What is varicocele embolization?
Varicocele embolization is a minimally invasive, non-surgical procedure used to treat varicoceles—enlarged veins in the scrotum that can cause pain or infertility. The procedure blocks abnormal blood flow, allowing healthy circulation to return.
Who is a good candidate for varicocele embolization?
Men with scrotal pain, infertility, low sperm quality, or a diagnosed varicocele may be good candidates. Varicocele embolization is especially suitable for patients seeking a non-surgical alternative to varicocelectomy.
How does varicocele embolization work?
During the procedure, a catheter is inserted into a vein and guided to the affected testicular vein. Small coils or embolic agents are placed to block the abnormal vein, redirecting blood flow to healthy veins.
Is varicocele embolization safe?
Yes, varicocele embolization is considered a safe and effective treatment when performed by an experienced interventional radiologist. Complication rates are low, and most patients tolerate the procedure well.
What are the benefits of varicocele embolization over surgery?
Benefits include:
• No surgical incision
• No general anesthesia
• Minimal pain
• Faster recovery time
• Outpatient treatment
Does varicocele embolization improve fertility?
Varicocele embolization can improve sperm count, motility, and morphology in many patients. These improvements may increase the chances of natural conception or success with fertility treatments.
How long is recovery after varicocele embolization?
Most patients return to normal activities within 24–48 hours. Mild discomfort or soreness may occur but usually resolves quickly.
What are the success rates of varicocele embolization?
Clinical studies report high technical success rates and significant symptom improvement. Many patients experience long-term relief from pain and improved fertility outcomes.
Are there side effects or risks of varicocele embolization?
Side effects are typically mild and may include temporary groin discomfort or swelling. Serious complications are rare when the procedure is performed by a trained specialist.
How do I prepare for varicocele embolization?
Preparation may include ultrasound imaging, blood tests, and avoiding certain medications. Your doctor will provide detailed instructions before the procedure.
