What is a Varicocele?
A varicocele is an enlargement of the veins within the scrotum, specifically the veins that drain blood from the testicles. These veins are part of a structure called the pampiniform plexus.
Varicoceles are similar to varicose veins that occur in the legs. They are a relatively common condition and occur in approximately 10–15% of men.
Varicoceles most commonly occur on the left side of the scrotum, although they can occur on both sides.
Varicocele
Symptoms
Many men with a varicocele have no symptoms and the condition may be discovered during a routine examination or fertility assessment.
When symptoms occur, they may include:
A dull aching pain or discomfort in the scrotum
A feeling of heaviness in the scrotum
Pain that worsens after standing for long periods or physical activity
Visible or enlarged veins in the scrotum
A lump that may feel like a “bag of worms”
Symptoms often improve when lying down.
Why Do Varicoceles Occur?
Varicoceles develop when the valves inside the veins of the spermatic cord do not function properly.
Normally, these valves help blood flow away from the testicles toward the heart. When the valves fail to work properly, blood can pool in the veins, causing them to enlarge.
Varicoceles occur more commonly on the left side because of differences in the way the veins drain from the testicle.
Possible Complications
Although many varicoceles cause no problems, they may be associated with:
Testicular Discomfort
Some men experience persistent aching or discomfort in the scrotum.
Testicular Shrinkage (Atrophy)
In some cases, the affected testicle may become smaller.
Fertility Problems
Varicoceles may affect sperm production and quality, and are sometimes found in men being evaluated for infertility.
Not all varicoceles cause fertility problems.
How is a Varicocele Diagnosed?
Diagnosis usually involves a physical examination by a doctor.
Physical Examination
Your doctor may examine the scrotum while you are standing and lying down. You may also be asked to perform a Valsalva manoeuvre (bearing down), which can make the veins more prominent.
Ultrasound Scan
A scrotal ultrasound may be performed to confirm the diagnosis and assess blood flow in the veins.
Ultrasound can also help rule out other conditions.
Do Varicoceles Need Treatment?
Not all varicoceles require treatment.
Treatment may be recommended if:
There is persistent pain or discomfort
There is evidence of infertility
There is testicular shrinkage
There are abnormal semen analysis results
Many men with varicoceles do not require treatment if they have no symptoms.
Recovery After Treatment
Recovery time depends on the type of procedure performed.
After surgery:
Mild discomfort and swelling may occur
Most patients return to normal activities within 1–2 weeks
Heavy lifting and strenuous exercise should be avoided for several weeks
Your doctor will provide specific recovery instructions.
When to See a Doctor
You should seek medical advice if you notice:
A lump or swelling in the scrotum
Persistent scrotal pain or discomfort
A feeling of heaviness in the scrotum
Concerns about fertility
Any new scrotal swelling should be assessed by a healthcare professional to ensure the correct diagnosis.
Treatment Options
Varicocelectomy (Surgical Repair)
Varicocelectomy is a surgical procedure to tie off the enlarged veins, allowing blood to flow through normal veins instead.
The surgery may be performed using:
Microsurgical techniques
Laparoscopic (keyhole) surgery
This procedure helps improve blood drainage from the testicle.
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Radiological Embolisation
In some cases, a radiologist can block the abnormal veins using small coils or special materials inserted through a catheter.
This procedure is performed through a small puncture in a vein, usually in the groin or neck.
Prognosis
Many men with varicoceles live normal lives without symptoms.
When treatment is required, it can help:
Reduce scrotal discomfort
Improve sperm quality in some patients
Prevent further testicular damage
