Pain after vasectomy, post-operative care and effectiveness

Every patient after a vasectomy at ZdrOva receives post-operative care.

In case of any doubts or complaints, we offer a prompt telephone consultation – with direct contact with the doctor. In justified cases we invite you to a follow-up visit at one of our permanent practices: in Warsaw or Katowice.

We are available and always ready to provide support.

High effectiveness of the OEFI method

The OEFI method (Open-Ended Fascial Interposition) is exceptionally effective, as measured by the percentage of cases requiring a repeat procedure after the first semen analysis. In the medical literature this figure ranges from 0 to 0.5%, while at the ZdrOva clinic it is below 0.06%.

This high effectiveness is due above all to the precise way in which the segment of the vas deferens leading to the penis is closed.

Every patient undergoing a vasectomy at ZdrOva has a guarantee: if the blockage fails, the procedure will be repeated free of charge.

Vasectomy effectiveness

Can an accidental pregnancy occur after a vasectomy?

Yes, although it happens very rarely. Counting all vasectomy methods – including the older, less effective ones – pregnancy occurs on average once in 1,900 cases.

For the modern OEFI method, which is only now gaining popularity, precise statistics are not yet available, even though hundreds of thousands of such procedures have already been performed. Everything indicates, however, that the failure risk is even lower than with older methods.

Open end – less pain after vasectomy

The OEFI method also has a markedly lower rate of pain complications.

This is thanks to the open-ended technique on the testicular side of the vas deferens, which allows continuously produced sperm to drain freely outside the sheath of the spermatic cord. As a result, pressure inside the epididymis and vas deferens does not build up, which greatly reduces the risk of chronic pain.

It is worth adding that chronic pain around the testicles most often results from past infections (including sexually transmitted diseases), pressure on nerves in the lumbar spine, or mechanical injuries – even ones as seemingly trivial as prolonged cycling. Vasectomy, on the other hand, is almost never the cause of chronic pain.

Why is the OEFI method still relatively rarely used in Europe?

The main reason is its technical difficulty, resulting from the dense vasculature of the spermatic cord. It requires exceptional precision, great care and practical training under the supervision of experienced operators.

What if there is pain after the vasectomy?

In our own clinical material we have not recorded a single case of chronic pain after vasectomy so far.

Although the risk of it occurring is extremely low, every patient can be sure of receiving our full support in case of any complaints.

Every patient also receives Dr Robert Kulik’s direct phone number, guaranteeing easy and quick contact in any situation requiring a consultation.

Post-operative pain related to vasectomy.

Vasectomy is one of the most frequently performed urological procedures – in the United States alone, around 600,000 such procedures were performed in 2025.

More than 15% of men experience some degree of prolonged discomfort after a vasectomy, lasting from a few to a dozen or so weeks. Severe pain requiring treatment affects around 1-2% of patients. It typically appears a few months after the procedure (if the cause is obstruction). In the case of a haematoma, the pain appears almost immediately after the procedure.

What are the causes of pain after vasectomy?

1. Obstruction (blocked outflow) and swelling of the testicle and epididymis
2. Sperm granuloma
3. Haematoma

Let us look at these one by one.

1. Obstruction (blocked outflow) and swelling of the testicle and epididymis
This is the most common cause of post-vasectomy pain syndrome. After the vas deferens is cut, sperm continue to be produced in the testicle but have nowhere to drain. This leads to increased pressure throughout the system – from the testicle, through the epididymis, up to the site where the vas was cut. This increased pressure irritates the nerve fibres in the area and causes pain.
On ultrasound examination, obstruction is always visible as characteristic changes:

• • Dilation of the rete testis – described in ultrasound reports as “ectasia rete testis” or “dilatatio rete testis”. The rete testis is a system of tiny channels inside the testicle through which sperm leave it. Normally these channels are so thin they are almost invisible on ultrasound. When dilated due to congestion, they become clearly visible.
  • Dilation of the epididymis – described in ultrasound reports as “epididymal dilatation”, “tubular ectasia of the epididymis” or “enlarged epididymis”. The epididymis is a long, coiled duct adjacent to the testicle where sperm mature. With obstruction it becomes swollen and dilated.

Important information about vasectomy technique: A no-scalpel vasectomy performed with an open testicular end (open-ended technique) significantly reduces the risk of obstruction. In this technique, the end of the vas deferens on the testicular side remains open, allowing sperm to flow freely into the surrounding tissue, where they are naturally absorbed by the body. This prevents excessive pressure build-up in the testicle and epididymis, and the risk of pain syndrome is much lower than with the classic technique in which both ends of the vas are closed.

2. Sperm granuloma
A sperm granuloma is a lump that forms where sperm leak out of the cut vas deferens and are absorbed. The body reacts to the presence of sperm as a foreign body, surrounding them with macrophages (scavenger cells)  – a lump forms which may be painful.
Whether a granuloma hurts depends largely on the vasectomy technique:

• • Without fascial interposition (without FI) – if the testicular end of the vas is left inside the spermatic cord without any barrier, the granuloma forms in direct contact with the nerve fibres running inside the cord. The spermatic cord is a structure resembling a long sack running from the inguinal canal that encloses the testicle and all its associated structures. Inside the cord, besides the vas deferens and blood and lymph vessels, there are numerous nerve fibres. When a granuloma grows among these nerves, it can cause considerable pain.
  • With fascial interposition (FI) – in this technique, after cutting the vas, a layer of fascia (the membrane surrounding the spermatic cord) is placed between its ends, creating a barrier. As a result, even if a granuloma forms (which is a natural process, since the sperm have to be absorbed somewhere), it forms outside the spermatic cord – away from the nerve fibres. Such a granuloma usually causes no pain.

3. Haematoma

A haematoma is a compact “ball” of blood that forms when bleeding occurs during the procedure and the blood cannot escape. Every surgical procedure carries some risk of internal bleeding. In the case of vasectomy, blood may collect in the scrotum, forming a painful lump. Small haematomas usually resolve on their own within a few weeks, but larger ones may persist longer and cause chronic discomfort. A haematoma almost always forms very quickly, within a few hours of the procedure. That is why on the day of the vasectomy the patient should limit walking and mainly sit in a comfortable position.

On physical examination, patients with post-vasectomy pain syndrome often show:

• a painful, swollen epididymis
• tenderness at the vasectomy site
• a palpable sperm granuloma (a lump at the procedure site)