NHS Vasectomy | Community Healthcare

Urology

Vasectomy

Vasectomy is a male contraceptive method involving a minor surgical procedure to cut the vas deferens tube which is responsible for transporting sperm from the testicles to the penis. Sperm production occurs in the testicles. After the vas deferens is cut, sperm are unable to enter the semen released during ejaculation.

What is a Vasectomy?

How does a Vasectomy work?

It is a common surgical procedure designed for male sterilization, which we perform under local aesthetic. During the procedure, the patient remains awake, but a local aesthetic is administered via injection to numb the area, ensuring that the individual does not experience pain. The local aesthetic is injected into a small area of skin on either side of the scrotum, just above the testicles (testes).

A tiny cut or puncture hole is made in the numbed skin on each side of the scrotum. The vas deferens can be seen quite easily under the cut skin, the cut with a surgical knife (scalpel) and dissovable stitches are used to close up the small cut. The procedure usually takes up to 30 minutes.

There is usually some discomfort and bruising for a few days afterwards which normally goes away quickly. The discomfort can be helped by wearing tight-fitting underpants day and night for a week or so after the operation. It is also best not to do heavy lifting or strenuous exercise for four weeks or so after the operation.

Vasectomy risks:

Most men have no problems after a vasectomy. Problems are uncommon but include the following:

As with any operation or cut to the skin, there is a small risk of a wound infection.
The bruising and swelling around the operation site is sometimes quite noticeable. However, it will go in a week or so this can often be helped, believe it or not, by placing a bag of ice pack over the bruised area!
Rarely, sperm may leak into the scrotum and form a swelling which may need treatment.
A small number of men have a dull ache in the scrotum for a few weeks or months after the operation. This usually settles within three months.
A very small number of men develop a post-vasectomy pain which does not settle over time. This can be mild or severe. It may be in the scrotum, the penis, the testicles (testes) or the lower tummy. The most recent studies show that this only occurs in 0.2% of men.

How do I know it has been successful?

Some sperm survive in the upstream part of the vas deferens for several weeks after vasectomy. These can get into the semen for a while after the operation. About 16 weeks after the operation a semen test will be requested which will be looked at under the microscope to check for sperm.

If there are no sperm in this sample, the vasectomy has been successful. If there are sperm present, another test will be performed 4-6 weeks after. Until it has been confirmed that there are no sperm in the sample another method of contraception must be used to prevent pregnancy.

Andrology sample information

It is permanent, therefore reducing the risk of unplanned pregnancies. It is easier to do and more effective than female sterilisation.

What are advantages of a vasectomy?

It may take a few months before the semen is free from sperm. As it is permanent, some people regret having a vasectomy, especially if their circumstances change. Vasectomy does not protect from sexually transmitted infections.

What are disadvantages of a vasectomy?

Does a vasectomy affect sex drive?

No. The sex hormones made by the testicles (testes) - for example, testosterone - continue to be passed into the bloodstream as before so are not affected by a vasectomy. Also, vasectomy does not reduce the amount of semen ejaculated during sex. Sperm only contribute a tiny amount to semen. Semen is made in the seminal vesicles and prostate higher upstream. Sperm are still made as before in the testicles (testes). The sperm cannot get past the blocked vas deferens and are absorbed by the body.

Is a vasectomy reversible?

It is wise not to make the decision at times of crisis or change, such as after a new baby or termination of pregnancy. It is best not to make the decision if there are any major problems in the relationship with your partner.

Remember there are reversible forms of long-term contraception which are very effective. Consider these as a couple before making your decision. These are all for women. See the separate leaflet called Long-acting Reversible Contraceptives (LARCs).

Ideally, both partners are happy with the decision before a vasectomy. However, it is not legally necessary to obtain your partner's permission.

Vasectomies are considered permanent and reversal is never offered on the NHS. Private providers will offer vasectomy reversal and the success rates of this are quoted as:

75% will achieve pregnancy if the reversal is done within 3 years of the vasectomy.
50-55% if it has been 3 - 8 years since the vasectomy.
40-45% if it has been 9-14 years since the vasectomy.
30% if it has been 15-19 years since the vasectomy.
Less than 10% if it has been more than 20 years since the vasectomy.

Some common questions about vasectomy:

Is vasectomy done on the NHS? Yes - most men have a vasectomy done on the NHS. However, waiting lists may vary throughout the country. Some men prefer to have it done at a private clinic or hospital.

Does the operation hurt? No more than any other minor operation that uses local anaesthetic. The injection of local anaesthetic may sting a bit for a few seconds. It is put in just a small area of skin. After this, the operation is usually painless. After the operation, when the local anaesthetic wears off, the top part of the scrotum is normally mildly sore for a few days.

What if I change my mind? Vasectomy is considered permanent. There is an operation to re-unite the two cut ends of the vas deferens. It is a difficult operation and not always successful. It is also never available on the NHS, so needs to be paid for privately.

How soon after the operation can I have sex? It is recommended to abstain from sex for between 2 to 7 days after the vasectomy. However, other methods of contraception will need to be used until the semen specimen has been confirmed as clear of sperm. Some sperm will survive upstream from the cut vas deferens for a few weeks.

I have heard that there is an increase in the risk of prostate cancer after vasectomy. Is this true? In 2017, a rigorous review of 53 studies and 15 million patients suggested no increased risk of prostate cancer following a vasectomy. In 2021, a similar review of 17 million patients suggested a small but significant increased risk of diagnosis of prostate cancer in men who had had a vasectomy but no increased risk of death from prostate cancer. The increased risk was found to be from 16 in 1000 to 19 in 1000. It is not clear why this possible increased risk exists - it is thought that it is possible that men who choose to have a vasectomy are more aware of their health and are more likely to request tests or screening for prostate cancer.