Vasectomy

A small operation that cuts and seals the tubes carrying sperm, used as a permanent form of contraception for men.

✓ Medically reviewed by a GMC-registered consultant · last reviewed September 2026 · next review September 2027 · how we review

In short

A vasectomy is a permanent contraception for men: it blocks sperm from reaching the semen, but does not change sex drive, erections or orgasm.
It is not effective immediately — you must keep using other contraception until a semen test at least 12 weeks later shows no sperm.
It is a quick procedure under local anaesthetic, with most people back to normal within a week.
Treat it as irreversible; reversal is not always possible and is rarely funded by the NHS, so be certain before deciding.

A plain-English summary. The detail — including risks and recovery — is below.

At a glance

TypeMinor surgical procedure (male sterilisation)

AnaestheticLocal anaesthetic, occasionally general or spinal

How long it takesAbout 15–20 minutes

Hospital stayOutpatient or day case; usually no hospital stay

Time off workA few days; back to most activities within a week

When you'll see resultsYou are not sterile straight away; a semen test at least 12 weeks later confirms it has worked

On the NHS?Often available on the NHS; some people choose private care for speed or convenience

A general guide. Your specialist will give you advice for your situation.

Best fit

A highly effective, permanent form of contraception once confirmed by a semen test

Pause if

You are not certain you have completed your family or might want children in future.

Main recovery point

The local anaesthetic wears off after a few hours. Expect aching, mild swelling and bruising. Rest, wear close-fitting support and use simple painkillers...

Good aftercare

Clear written instructions on pain relief, support, activity and wound care.

First 24–48 hours

The local anaesthetic wears off after a few hours. Expect aching, mild swelling and bruising. Rest, wear...

Days 2–7

Discomfort settles for most people. Avoid heavy lifting, sport and cycling. Many return to desk work within a...

Weeks 1–2

Any wound openings heal and dissolvable stitches disappear. You can usually resume sex when comfortable, but you...

From about 12 weeks

You provide a semen sample at least 12 weeks after surgery (after roughly 20 or more ejaculations). Only once this...

Medical line illustration of scrotal testicular anatomy for Vasectomy. — Illustration only - not a diagnosis, medical advice or a promise of result. Your anatomy and treatment plan may differ. Vuemedics does not publish before-and-after photos.

What is a vasectomy?

A vasectomy is a small operation that cuts and seals the two tubes (the vas deferens) that carry sperm from the testicles into the semen. Sperm are still made, but they can no longer reach the semen, so a man's ejaculate no longer causes pregnancy.

It is meant as a permanent method of contraception. You should only go ahead if you are sure you do not want children, or any more children, in the future. Reversal is sometimes possible privately but is not always successful and is not normally funded by the NHS.

A vasectomy does not work straight away. Sperm already past the cut tubes take time to clear, so you must keep using other contraception until a semen test confirms there are no sperm left. It does not change your hormones, sex drive, erections or orgasms, and it does not protect against sexually transmitted infections.

Types, options & approaches

There may be different ways to do this. The right approach depends on the clinical question and your circumstances.

No-scalpel vasectomy

The surgeon makes a tiny puncture in the scrotum with a special instrument instead of a cut. This is now the most common UK approach and tends to mean less bleeding and a lower chance of infection.

Conventional (incision) vasectomy

One or two small cuts are made in the scrotal skin to reach the tubes. Both methods then divide and seal the tubes in the same way.

How the ends are sealed

After removing a short section of each tube, the surgeon seals the ends — often by sealing with heat (cautery) and placing a layer of tissue between them — to reduce the chance of the ends re-joining.

Anaesthetic options

Almost always done under local anaesthetic in the clinic. A general or spinal anaesthetic is occasionally used if the tubes are hard to feel, or for anxious patients or those with a low pain threshold.

Vasectomy vs female sterilisation

Point	Vasectomy	Female sterilisation
Procedure size	Small, local anaesthetic	Bigger, usually general anaesthetic
Recovery	A few days	Often longer
Works straight away?	No — needs a clear semen test	Effective sooner
Reversal	Sometimes, not guaranteed	Difficult and not guaranteed

Both are meant to be permanent. Long-acting reversible contraception (such as an implant or coil) is an alternative if you are not certain.

Preparing for your procedure

Be sure your family is complete; vasectomy is meant to be permanent and the NHS does not normally fund reversal.
Talk it through with your partner if you have one, though the decision is ultimately yours.
Tell the team about any blood-thinning medicines (such as warfarin, aspirin, clopidogrel or rivaroxaban) and any bleeding tendency.
Mention any previous scrotal surgery, undescended testicle, hernia repair or ongoing testicular pain.
Wear or bring close-fitting underwear or a scrotal support for afterwards.
Arrange a quiet few days; book someone to drive you home if you are having sedation or a general anaesthetic.
Keep using your usual contraception right up to and after the procedure until you are given the all-clear.

What happens

The procedure is usually done in a clinic under local anaesthetic and takes about 15–20 minutes. You will feel a sting as the anaesthetic is injected on each side, then numbness; you may still feel touch, pressure or a brief tug when each tube is handled, which can make you feel light-headed for a moment.

The surgeon reaches each vas deferens through a tiny puncture or small cut, removes a short segment, and seals the ends. Any skin opening is small and usually closed with dissolvable stitches or left to heal on its own. You can normally go home shortly afterwards once you feel steady.

Is this procedure right for me?

A good consultation should explore whether it's the right choice for you now — including reasons to wait or consider something else.

May not be suitable if…

You are not certain you have completed your family or might want children in future.
You are deciding under pressure, at a time of relationship or life crisis, or expect it to be easily reversible.
You have ongoing unexplained testicular or scrotal pain that has not been assessed.
Local anaesthetic is impractical because the tubes are very hard to feel, or previous scrotal surgery makes access difficult, without planning a different anaesthetic.

Delay or rearrange if…

There is an active scrotal or skin infection.
Your partner is pregnant or you are within the first six months after the birth of a child (BAUS advises this is not normally an appropriate time to decide).
You take blood-thinning medicines that have not yet been reviewed.
You have unresolved doubts and want more time to consider a permanent decision.

Alternatives to discuss

Long-acting reversible contraception for the woman, such as a coil (IUD/IUS) or implant.
Other contraception such as condoms, the pill or injection.
Female sterilisation, though this is a larger procedure.
No procedure, if you are not sure your family is complete.

Before you decide

Use this as a shared-decision checklist. The aim is not just “can this be done?”, but whether it is right for you, now, with the risks and alternatives clearly understood.

What matters most to me?

Think about symptoms, daily life, work, caring responsibilities, sport, fertility, travel, appearance and anxiety — the right choice depends on your priorities, not just the medical facts.

What are all my options?

Ask about waiting, monitoring, medicines, rehabilitation, a smaller or larger procedure, a different test, NHS referral, or a second opinion where that would help.

What would make me pause?

Active infection, pregnancy, unstable medical problems, smoking, medicines that increase bleeding, poor support at home, or feeling pressured are all reasons to slow down and get tailored advice.

What happens if I do nothing today?

For some problems, waiting is safe; for others, delay can make treatment harder. A good consultation should explain the trade-off in plain English.

Comfort, sedation or contrast choices

If local anaesthetic, sedation, contrast or pain relief is used, ask what is planned, why, and what it means afterwards.

Local anaesthetic

The usual choice, given as an injection on each side; you stay awake and go home shortly afterwards.

General or spinal anaesthetic

Occasionally used if the tubes are difficult to feel, for very anxious patients, or those with a low pain threshold; needs a theatre and someone to take you home.

Benefits

A highly effective, permanent form of contraception once confirmed by a semen test
Avoids the need for ongoing contraception such as pills, condoms or coils
A smaller, lower-risk procedure than female sterilisation
Done under local anaesthetic with a quick recovery for most people
No effect on hormones, sex drive, erections or orgasm

Risks & complications

More common

Mild bruising and swelling of the scrotum, with a little clear yellow fluid leaking from the wound for a few days (almost everyone)
Aching or discomfort for several days
Blood in the semen the first few times you ejaculate

Less common

A larger collection of blood (haematoma) or significant swelling that sometimes needs draining
Infection or inflammation of the testicle (epididymo-orchitis) needing antibiotics
A small tender lump where sperm leaks from the tube (sperm granuloma)

Rare but serious

Long-term testicular pain (post-vasectomy pain syndrome) severe enough to affect daily life
Early failure: the semen test still shows moving sperm so you are not sterile
Late failure: the tubes re-join months or years later, allowing a pregnancy

The most talked-about risk is long-term scrotal or testicular pain. UK information (BAUS) describes troublesome chronic pain affecting day-to-day life in roughly 1–2 in 100 men, while wider reviews report a broader range; ask your surgeon how they counsel patients about this. The other key point is that vasectomy is not immediate and not perfectly reliable — late failure happens in about 1 in 2,000 men even after clear tests.

Published figures to discuss

Reported complication and failure rates vary with technique, how the tube ends are sealed, surgeon experience and how complications are defined and counted. Figures below come from UK patient information and large UK series and should be treated as cautious guides, not promises.

Figure	Reported range	How to interpret it	Source / confidence
Late failure (tubes re-join after clear tests)	About 1 in 2,000 men	BAUS figure; this is why any later pregnancy should be investigated.	Complications of vasectomy: UK audit of 105,393 procedures — PubMedpubmed.ncbi.nlm.nih.govPublished figure
Early failure (sperm still present so not yet sterile)	Around 1 in 250, up to ~1% in some series	Confirmed by the semen test; you must keep using other contraception until cleared.	Complications of vasectomy: UK audit of 105,393 procedures — PubMedpubmed.ncbi.nlm.nih.govPublished figure
Troublesome long-term testicular pain	Roughly 1–2 in 100 by BAUS counselling; wider reviews report a broader range	Pain severe enough to affect daily life is uncommon but important to discuss beforehand.	Guide sourcesClinical context
Haematoma or significant swelling needing drainage	Between about 1 in 10 and 1 in 50	Larger blood collections are less common than minor bruising.	Complications of vasectomy: UK audit of 105,393 procedures — PubMedpubmed.ncbi.nlm.nih.govPublished figure
Infection/inflammation of the testicle (epididymo-orchitis)	Between about 1 in 10 and 1 in 50	Usually treated with antibiotics.	Complications of vasectomy: UK audit of 105,393 procedures — PubMedpubmed.ncbi.nlm.nih.govPublished figure

These are literature figures, not a personalised prediction. Your own risks and likely benefits depend on your circumstances, your health, and how your care is carried out and followed up.

What happens afterwards

Most men recover quickly. The main job is to rest the scrotum for a few days, manage discomfort, and remember that you are not yet sterile.

First 24–48 hours

The local anaesthetic wears off after a few hours. Expect aching, mild swelling and bruising. Rest, wear close-fitting support and use simple painkillers such as paracetamol; ice packs (not directly on skin) can help.

Days 2–7

Discomfort settles for most people. Avoid heavy lifting, sport and cycling. Many return to desk work within a couple of days and most activities within a week.

Weeks 1–2

Any wound openings heal and dissolvable stitches disappear. You can usually resume sex when comfortable, but you still need other contraception.

From about 12 weeks

You provide a semen sample at least 12 weeks after surgery (after roughly 20 or more ejaculations). Only once this confirms no sperm can you stop other contraception.

What's normal — and not a worry

Aching, bruising and mild swelling of the scrotum for a few days
A little clear or blood-tinged fluid seeping from the wound early on
Blood in the semen the first few times you ejaculate
Feeling tender during sex or exercise for a week or two

Aftercare

Wear close-fitting underwear or a scrotal support day and night for the first few days.
Take simple painkillers such as paracetamol; start before the anaesthetic wears off.
Use ice packs wrapped in a cloth to ease swelling in the first day or two.
Avoid heavy lifting, strenuous exercise and cycling for at least a week.
Keep the area clean and dry; let dissolvable stitches fall out on their own.
Keep using other contraception until you are given the all-clear from your semen test.
Follow the clinic's instructions for producing and delivering your semen sample.
Contact your surgical team if bruising, swelling or pain is getting worse day by day.

Before your procedure

Close-fitting underwear or scrotal support ready
Paracetamol and/or ibuprofen at home
A few quiet days with no heavy lifting planned
Lift home arranged if you are having sedation or general anaesthetic
Your usual contraception ready to continue
Semen-test instructions and date understood
Clinic's contact number saved in case of problems

Scars and how they heal

There is usually no visible scar with the no-scalpel method, just a tiny puncture mark that heals quickly. The conventional method leaves one or two small scars on the scrotum that fade and are easily hidden. Bruising of the scrotal skin is common in the first week or two and settles on its own.

⚠ Get urgent help if…

Increasing pain, swelling or a hard lump in the scrotum that is getting worse day by day
A scrotum that becomes very swollen, hot or red
Fever, feeling generally unwell, or pus or spreading redness around the wound
Bleeding that will not stop
Severe or persistent testicular pain weeks or months after the procedure
A pregnancy or positive pregnancy test in your partner at any time after the operation

Who to contact: your clinician, clinic or test provider first (keep their number to hand). For urgent advice when you can't reach them, call NHS 111. In an emergency, call 999.

General guidance — it doesn't replace the specific advice your specialist gives you.

Results & realistic expectations

A vasectomy is considered successful only when a semen test shows no sperm (or, in some cases, only rare non-moving sperm). Until then you are not protected. After the all-clear, it is one of the most reliable forms of contraception, more than 99% effective.

Even so, no method is perfect. Late failure — the cut ends slowly re-joining — happens in around 1 in 2,000 men, which is why an unexpected pregnancy should always be checked out. A vasectomy does not protect against sexually transmitted infections, so condoms are still needed with new or untested partners.

How long it lasts

For almost all men a confirmed vasectomy lasts for life. Late failure is rare but possible, so any future pregnancy in a partner, or new testicular symptoms, should be reviewed. Because it is intended to be permanent, the decision is best made when you are confident your family is complete.

Follow-up & long-term care

Follow-up centres on the post-vasectomy semen test, usually arranged for at least 12 weeks after the procedure. If the first sample still contains sperm, you will be asked to repeat it. You should not rely on the vasectomy until you receive written confirmation that you are clear.

Repeat, follow-on and what comes next

If the semen test still shows sperm, the test is repeated; rarely the procedure has to be redone.
A vasectomy reversal is a bigger operation, is not always successful, and is rarely funded by the NHS.
Persistent post-vasectomy pain occasionally needs further assessment, pain management or, rarely, further surgery.

Ask what happens if the result is unclear or needs repeating, and what is included if further tests or follow-up are needed.

What good aftercare looks like

Clear written instructions on pain relief, support, activity and wound care.
A defined process and timing for the semen test, with results communicated in writing.
A named contact and route for advice if bruising, swelling or pain worsens.
Honest counselling that you remain at risk of pregnancy until cleared, and a plan if pain persists.

What affects the cost

Costs vary a great deal between people and providers, and we don't publish prices. What matters is understanding what drives the cost and making sure your quote is complete. The main things that affect it:

Whether the procedure is done under local anaesthetic in clinic or under sedation/general anaesthetic in theatre
The surgeon's or operator's fee and their experience
The clinic or facility fee
Whether the post-vasectomy semen test (and any repeat test) is included
Follow-up appointments and how complications would be handled
Geographic location and type of provider

Make sure your written quote includes

The surgeon/operator fee and the clinic or facility fee
The anaesthetic type included (local, or sedation/general if relevant)
Whether the semen test, and any repeat test, are part of the price
What follow-up is included
What happens, and what it would cost, if there is a complication or early failure
The cancellation and rebooking policy

On the NHS? Vasectomy is often available on the NHS, though waiting times and local criteria vary; some men pay privately for speed or convenience. Reversal is rarely funded by the NHS.

You're entitled to your total cost in writing — including reports, follow-up and what happens if the result is inconclusive — before you decide.

Choosing a specialist safely

Check the specialist is on the GMC Specialist Register for this area.
Make sure they work at a CQC-registered service, and look for membership of the relevant Royal College or professional body.
You're entitled to time to consider and to have your questions answered before you agree — the specialist who looks after you should explain it, not a salesperson.
Be wary of pressure: time-limited offers or deposits taken before you've had time to think are red flags, not bargains.
You're entitled to your total cost in writing — including any follow-up — before you decide.

How Vuemedics verifies every consultant →

Questions to ask your medical professional

Take this to your consultation. A good specialist will welcome every one of these.

Do you use the no-scalpel technique, and how do you seal the tube ends?
How do you counsel patients about the risk of long-term testicular pain?
What are your own early- and late-failure rates?
Exactly when and how should I do my semen test, and what happens if sperm are still present?
What should I do if I get worsening pain or swelling afterwards?
Are you on the GMC Specialist Register for this area, and which Royal College or professional body are you a member of?
Will you be the specialist who carries out my procedure, and who looks after me afterwards?
What are the risks for someone like me, and how often do your own patients have a problem or need it repeated or redone?
What does a realistic result look like — and what can this procedure not achieve?
What are my options, including waiting, doing nothing for now, or choosing a different approach?
Can I have written information, results and aftercare instructions in a format I can use, including any accessibility or communication support I need?
What is the total cost in writing, including any follow-ups, and how much time do I have to decide?

Frequently asked questions

Can I get a vasectomy on the NHS?

Often yes, though availability and waiting times vary by area. Some men choose to pay privately for a quicker or more convenient appointment. Reversal, however, is rarely funded by the NHS.

When can I stop using other contraception?

Only after a semen test, usually taken at least 12 weeks after the procedure and after about 20 or more ejaculations, confirms there are no sperm. Until then you can still cause a pregnancy.

Will it affect my sex life, erections or orgasm?

No. A vasectomy does not change your hormones, sex drive, ability to get an erection, or the sensation of orgasm. You still ejaculate roughly the same amount of fluid — it just no longer contains sperm.

Is it reversible?

Reversal is sometimes possible privately, but success is not guaranteed and falls the longer it has been since the vasectomy. Treat the original procedure as permanent rather than relying on reversal.

Does a vasectomy cause cancer or long-term health problems?

There is no good evidence that vasectomy causes testicular or prostate cancer or other long-term health problems. The main recognised long-term risk is ongoing scrotal pain in a small number of men.

Does it hurt?

You will feel a sting as the local anaesthetic goes in, then mainly pressure or tugging. Afterwards there is usually aching and bruising for a few days, eased by support and simple painkillers.

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How we made this page

Medically reviewed by a GMC-registered consultant. Written in plain English, checked against NHS, NICE, GMC and relevant Royal College / specialist-society guidance, and kept under review. No clinic paid to appear on this page, and we publish no pricing. This is general information to help you prepare — it is not a substitute for advice from your own clinician. How we review our guides →

Source hierarchy: UK regulator and NHS/NICE guidance first, then relevant Royal College or specialist-society guidance, then peer-reviewed evidence for procedure-specific figures where available.

Sources & standards: NHS — Vasectomy (male sterilisation) BAUS — Vasectomy (patient leaflet) BAUS — Reversal of vasectomy (patient leaflet) Complications of vasectomy: UK audit of 105,393 procedures — PubMed Incidence of post-vasectomy pain: systematic review — PMC

Reviews reflect patients' experience of care, not clinical outcomes. For procedure volumes and outcome data see PHIN.

Last medically reviewed 2026-09-21. Spotted something wrong or out of date? Report an error in this guide.