A varicocele is a group of enlarged veins around a testicle. It may cause a dull ache, heaviness, testicular changes, or concerns about sperm quality. Varicocele embolization closes the abnormal vein from inside the blood vessel without a scrotal incision. Many varicoceles need no treatment. The decision depends on symptoms, examination, ultrasound findings, fertility goals, and comparison with surgical repair.
Symptoms and diagnosis
A varicocele is more common on the left. It may feel like a soft cluster of veins that becomes more noticeable while standing or straining. Symptoms may include:
- A dull ache or dragging sensation
- Heaviness that worsens with standing or exercise
- A difference in testicular size
- Abnormal semen testing in an infertility evaluation
Scrotal pain has many possible causes. A urologic examination and scrotal ultrasound may be needed before embolization is considered. Fertility concerns should include evaluation of both partners when appropriate.
Who may be considered?
Treatment may be discussed for a clinically confirmed varicocele associated with persistent pain, testicular effects, or infertility with abnormal semen findings. It may also be considered after a varicocele returns following surgery. An incidental varicocele without symptoms, testicular change, or fertility concern may only need observation.
How embolization works
An interventional radiologist enters a vein through a small puncture, usually in the neck or groin, and guides a catheter to the abnormal testicular vein. Venography maps the vein and its branches. Coils, a sclerosant, a vascular plug, or a combination may be used to close the abnormal pathway so blood returns through healthier veins.
The outpatient procedure and recovery
Varicocele embolization is an outpatient procedure, generally performed with local anesthesia and moderate sedation when clinically appropriate. Patients return home after monitored recovery. Bruising, tenderness, or a temporary ache can occur. Instructions cover activity, lifting, medications, and when sexual activity or exercise can resume.
Benefits, limits, and risks
Embolization avoids a scrotal incision and can treat some recurrent varicoceles. Most side effects are temporary, such as bruising, tenderness, or a short-lived ache. Pain or semen measures may improve in selected patients, but fertility treatment can never guarantee pregnancy. Possible complications include bleeding, infection, contrast reaction, vein injury, clotting, coil or plug movement, unintended treatment of another vein, persistent pain, or recurrence. Occasionally the vein cannot be reached safely and the procedure is stopped.
Comparing treatment options
Both embolization and surgery aim to stop abnormal flow in the testicular vein.
Having embolization does not prevent later repeat embolization or surgical repair if another treatment becomes necessary. A urologist and interventional radiologist can help compare the options.
When scrotal pain is urgent
Sudden severe testicular pain, rapid swelling, fever, nausea, or a high-riding testicle needs emergency evaluation because testicular torsion or infection must be ruled out.
Patient Q&A
Does every varicocele need treatment?
No. Many cause no symptoms or harm and can be observed.
Can embolization improve fertility?
Semen measures and pregnancy rates may improve in selected patients, but results vary and pregnancy cannot be guaranteed.
Does embolization require a scrotal incision?
No. The abnormal vein is reached through a small puncture in a vein, usually in the neck or groin.
Can a varicocele return?
Yes. Recurrence or persistent abnormal veins can occur after either embolization or surgery.
Do I need to see a urologist?
Urologic evaluation is often helpful to confirm the diagnosis, rule out other causes of pain, and discuss fertility or surgical options.