Open a PDF version to print this topic

HealthInfo West Coast-Te Tai Poutini

Prostate surgery (TURP)

What is the prostate?

The prostate is a gland about the size of a walnut that is only present in men. It is located just below the bladder and surrounds the urethra, the tube through which urine flows from the bladder and out through the penis. The prostate gland contributes to the seminal fluid produced during ejaculation, and has an important function in fertility.

Diagram of the urinary tract showing the bladder and prostate

What is a TURP?

A transurethral resection of the prostate (TURP) is an operation to treat urinary blockage caused by an enlarged prostate. When the prostate tissue enlarges, it squeezes inward on the urethra causing some or all of the following symptoms:

Why is a TURP operation necessary?

In some cases, the operation is necessary to prevent complications. In other situations it is one of a range of options to improve the symptoms caused by an enlarged prostate.

Deciding to have a TURP operation

To assist in the decision making process, the urologist may arrange to:

  1. Complete a symptom score questionnaire determining how bothersome your condition is.
  2. Have a digital rectal examination (DRE) to assess prostate size.
  3. Have a flow and ultrasound residual. This records the rate at which urine is passed, and the amount retained after passing.
  4. Possibly provide a urine specimen to check for infection.
  5. Receive blood tests to determine the likelihood of cancer (PSA), and the health of the kidneys (creatinine).

Other factors including your general health will be taken into consideration when deciding whether to proceed with the operation.

Before the operation

The operation and outcomes will be explained by the urologist, then consent will be requested.

After signing your consent form you may be asked to see an anaesthetist or nurse up in the Day Surgery Unit. You will be asked to complete a health questionnaire and you may need to have an ECG and a chest X-ray. This is determine your fitness for an anaesthetic.

A blood test will need to be performed and a urine sample may be need to be taken a few days prior to surgery. The Day Surgery Unit staff will provide you with the laboratory forms for these tests.

It is important to avoid constipation. Try to establish and maintain a regular, soft bowel habit leading up to your operation. Identify the foods that can help you maintain a regular bowel habit for your post-operation period.

On the day of the operation

You will be advised when to come to hospital – usually on the day of surgery. On arrival to the ward the staff will show you to your bed and guide you through what is required before your operation. It is advised you stop eating and drinking at least six to eight hours before surgery. You should bring all your own medications with you to hospital. Please inform your surgeon if you are taking any anticoagulant medication (e.g. warfarin, aspirin, clopidogrel, or dabigatran). The choice of spinal or general anaesthetic will be decided after discussion with the anaesthetist. This usually occurs in your hospital room pre-operatively. Just before surgery you may be given a premedication tablet to relax you. You will be encouraged to start deep breathing and coughing exercises pre-operatively. This prevents any breathing complications or chest infection occurring following the surgery and anaesthetic.

During the operation

During the operation, a telescopic instrument called a resectoscope is passed up the urethra (the bladder outlet). This is used to chip away the enlarged prostate tissue. This process is achieved by a wire loop that has an electrical current running through it. This loop both cuts and seals blood vessels. After the operation, the bladder is flushed with a solution to remove the chippings of prostate tissue. A catheter (a thin flexible tube) is then inserted through the urethra into the bladder. The urine will then drain via the urethra into a catheter bag. The operation usually takes from 30 to 60 minutes, depending on the size of the prostate gland.

After the operation

You will probably be in hospital one to two days following this type of surgery. When the operation is completed, you will go to the recovery room for a short while where you will be cared for until you are ready to be transferred to your room. When you wake up, it is common to feel an urgent desire to pass urine. This is due to the catheter in your bladder. As the anaesthetic wears off, you may experience some pain. Your nurse will relieve this with medication. You will have a drip or intravenous (IV) line in the arm to prevent dehydration. This will be removed once you are drinking enough – usually after one night. If you have had a spinal anaesthetic, you will be asked to lie flat for several hours after returning to the ward to allow for the anaesthetic to wear off.

Your nurse will monitor your catheter drainage, which is likely to be blood stained for the first few days. You may have continuous bladder irrigation (instillation of sterile fluid into the bladder, flushing blood and debris out through the catheter). The bladder irrigation continues until the morning after surgery at which time it is usually removed. Your catheter is usually removed one or two days after surgery. The catheter is removed by deflating the balloon holding it in place. Once the balloon is deflated, the catheter slides out easily causing little discomfort. Our aim is to keep you as comfortable as possible, it is important to let your nurse know when pain or discomfort starts. At all times, your nurse is there to help you, please ring your bell if you need assistance.

Once the catheter comes out you may at first have a burning sensation when passing urine. However, if the burning sensation lasts for longer than three days, or there is sign of infection or obstruction, it is important you contact the urology nurse (see below). After surgery, you might experience some of the following symptoms:

You are usually ready for discharge on the same day the catheter is removed.

After discharge

Results of the operation

Most patients can expect a significant improvement in flow and a permanent reduction in frequency. The return of good size and force of the stream is variable.

Possible complications


Bleeding severe enough to bring you back to the hospital is rare. This risk disappears when healing is complete, six to eight weeks after surgery. If you notice an increase in bleeding or are unable to pass urine, contact the urology nurse. If bleeding causes a blockage, contact your surgeon or visit the nearest Emergency Department.


Incontinence, or leakage of urine without control, may occur temporarily and last for a few weeks. Urgency is common. Only very few patients have incontinence that lasts beyond the first few months. If you have any incontinence after your operation, you will be given information and instructions about exercises that you can do to strengthen the pelvic floor muscles. The urology nurse can also provide you with information about the management of leakages.

Urethral stricture

In a small number of cases, narrowing may develop in the urethra. This may occur either near the tip of the penis or further up the urethra, several months after the operation. You may notice your urinary stream, which was better after the operation, slows down again. Please mention this problem to your doctor. If detected early and treated with gentle stretching under local anaesthetic most strictures resolve. An operation to cut open the tight area may be appropriate.

Sexual function

If you are sexually active before the operation, this is likely to remain unchanged. About eight out of 10 men remain unchanged, one out of 10 seem to be better off and one out of 10 do have a decrease in erection ability. The term impotence is often confused with sterility (the ability to father a child). They are not the same and, while sexual potency usually is unchanged, most times a man who has had a prostate operation is unable to father a child. This is because after surgery the seminal fluid is discharged backwards into the bladder. It then passes with the next passage of urine. The sensation of intercourse is the same and no harm is done by this ‘backwards ejaculation'.

Who to contact if a problem occurs

Remember, you have a follow-up appointment in six weeks. It is expected most irritative urinary symptoms will have settled by then.

On the next page: Continence & prostate surgery

Written by Urology Associates and Curt Medical Trials Trust. Adapted by the West Coast DHB. Page created May 2014.

See also:

Having an anaesthetic

Page reference: 72759

Review key: HIPRH-45800