Vasectomy and vasectomy reversal

This article discusses vasectomy, and the more complicated procedure of a vasectomy reversal. This will be of interest to any man who has had a vasectomy but has now decided to try for a baby using natural methods.


What is a vasectomy?

A vasectomy is intended to be a permanent form of contraception for men.The procedure involves cutting and tying off the vas deferens of the man to prevent sperm from the testes exiting the urethra during ejaculation.

The procedure is simple and can be performed under a local or general anaesthetic. The failure rate is approximately one in every 1000–1500 cases and it is not immediately effective.

Whilst a vasectomy is a relatively straightforward procedure that is usually performed in a medical clinic, a successful reversal is much harder to achieve. 

Why have a vasectomy reversal?

Having previously had a vasectomy a man is no longer able to have children. However, sometimes for a variety of reasons men who have undergone a vasectomy decide that they want to have a child. To conceive naturally following a vasectomy, the best method is to have a vasectomy reversal. Other options include sperm retrieval and Intra Cytoplasmic Sperm Injection (ICSI), sperm donation or adoption.

What is a vasectomy reversal?

A vasectomy reversal involves joining the previously cut ends of the vas deferens back together. The procedure is performed under a general anaesthetic and takes approximately two hours (although this will vary depending on the complexity of individual cases). The surgeon is attempting to join the tubes in the most appropriate place to allow sperm to travel through again.

What does the procedure involve?

Before the operation the man must not eat or drink for the six hours prior to surgery. Following anaesthetic, the surgeon will open the scrotum in order to access the area of the testes and vas deferens. The tubes will be joined using magnification and several very fine stitches will be placed on either side of the tubes.

The wound will be closed with dissolvable stitches and a dressing will be applied to the wound.

Following the operation the patient will wake up in a recovery area and be taken to a ward once fully awake. Patients can be given fluids immediately after surgery but may receive intravenous fluids through a drip into the arm. Food can be consumed soon after fluids have been taken.

Once the man is comfortable enough to be walking and has passed urine he is able to go home.

Pre-assessment checks

Before undergoing surgery the operation should be discussed with the surgeon or andrologist who will be performing the procedure. A general medical and urine sample will be taken to ensure there are no infections and that the patient is sufficiently well to undergo surgery. Patients are requested to bring in a list of medicines currently taken, this is especially important if the drugs include blood thinners. If medication is taken to thin the blood this may need to be altered in the days preceding the operation and during the stay in hospital.

A consent form will need to be signed before undergoing a vasectomy reversal and consent may be withdrawn at any time.

Post-operative care

The dressing applied to the wound may be removed before leaving the hospital, although if this is not the case, it should be removed 24 hours after the surgery. A scrotal support will need to be worn for at least two weeks following the operation.

For two weeks after the operation men should avoid heavy lifting, driving and sports as any sudden movement in the abdominal/scrotal areas may cause pain and swelling in the scrotum. Exercise should be increased on a gradual basis and sexual activity can resume four weeks after the operation.

It is advisable to stay off work for two weeks following the operation.

Risks and side effects


  • Pain and discomfort – painkillers should be taken regularly for two to three days.


  • Infection and/or swelling can in occur in the wound – this will require further treatment.
  • Chronic pain – ongoing pain lasting for a prolonged period.


  • Bleeding – this may cause bruising or swelling and may require further treatment.

Very rare

  • The blood supply to the testes is affected – this causes the testes to become smaller and function inadequately.

Success rates of vasectomy reversals

Four months after the reversal has taken place a semen sample should be submitted to the hospital or GP to check for sperm. In 35% of cases a vasectomy reversal results in a successful pregnancy.

The procedure can be repeated in cases where the initial surgery fails. The risks are greater but only mildly so. It is usually best practice to have sperm retrieved surgically at the second sitting. This can be frozen and used for IVF if the second procedure fails.

Relating to the abdomen, which is the region of the body between the chest and the pelvis. Full medical glossary
A medication that reduces sensation. Full medical glossary
A fluid that transports oxygen and other substances through the body, made up of blood cells suspended in a liquid. Full medical glossary
A means of preventing pregnancy. Full medical glossary
A means for the continuous injection into a vein. Full medical glossary
The discharge of semen from a man’s penis at the time of sexual climax. Full medical glossary
A viral infection affecting the respiratory system. Full medical glossary
The basic unit of genetic material carried on chromosomes. Full medical glossary
Any agent that reduces or abolishes sensation, affecting the whole body. Full medical glossary
intermittent claudication Full medical glossary
Invasion by organisms that may be harmful, for example bacteria or parasites. Full medical glossary
Within a vein. Full medical glossary
In vitro fertilisation. Fertilisation of the female reproductive cell (ovum) outside the body, before implantation into the uterus (womb). Full medical glossary
the period from conception to birth Full medical glossary
The sac that contains the testes. Full medical glossary
A mature male sex cell. Full medical glossary
The male sex organs, also called testicles, that produce sperm and the hormone testosterone. Full medical glossary
The tube that carries urine from the bladder, and in men also carries semen during ejaculation. Full medical glossary
The tube that conveys sperm out of the testicle in a male. Full medical glossary
The operation of male sterilisation. Full medical glossary
Relating to the veins. Full medical glossary