A urinary catheter is a thin, flexible tube that drains urine from the bladder. If you or someone you care for is newly living with one, it can feel daunting at first, but the reassuring reality is that most people carry on with their usual lives — working, socialising, exercising and travelling — once they and their carers have been shown how to look after it. This guide introduces what a catheter is, the main types, why people need one, and where to find support in Singapore.
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In a medical emergency, or for severe or sudden symptoms such as breathing difficulty, chest pain, fainting or stroke signs, call 995 immediately.
This is general information and does not replace the advice of your urology team and continence nurse. Seek urgent help if no urine drains and your lower tummy becomes painful or swollen (a possible blockage). Call 995 for a high fever with shivering, confusion or feeling very unwell.
What a urinary catheter is
A urinary catheter is a soft tube that drains urine from the bladder when a person cannot empty it normally, or when the bladder needs to be rested or monitored. It is one of the most common medical devices, used both for a short time — for example after an operation — and for the long term. The urine drains either continuously into a bag, or is released at intervals through a valve, or the bladder is drained and the tube removed each time. It is a well-established, manageable part of care that millions of people rely on every day, for a short spell or for the long term. With the right routine and support, it fits around an ordinary life rather than taking it over.
The three main types
There are three broad types. An indwelling urethral catheter is passed up the urethra into the bladder and held there by a small water-filled balloon, draining continuously. A suprapubic catheter drains the bladder through a small opening in the lower tummy instead of the urethra. And intermittent catheterisation means passing a catheter to empty the bladder and then removing it, several times a day — often done by the person themselves. Each has its own guide in this series.
Why people need one
There are many reasons, as the NHS explains. Common ones include being unable to empty the bladder (urinary retention), a blockage such as an enlarged prostate, nerve or neurological conditions affecting bladder control (for example spinal cord injury or multiple sclerosis), the period before, during or after some operations, delivering medicine into the bladder, monitoring urine output when someone is very unwell, and severe incontinence when other measures have not worked. Your doctor chooses a catheter for a specific reason, and reviews whether it is still needed.
Temporary or long-term
Many catheters are temporary and removed once the reason for them settles — for example after surgery, or once retention recovers. Others are needed long term. Indwelling catheters are not left indefinitely; they are changed on a regular schedule set by the team. Where a catheter is needed for a long time, the team also considers whether a suprapubic catheter or intermittent self-catheterisation might suit better, as these can carry fewer long-term problems than a long-term urethral catheter.
The closed system and infection
The most common complication of a catheter is a urinary infection, because bacteria can travel along the tube, and the risk rises the longer a catheter stays in. This is why care centres on keeping a “closed” drainage system — not disconnecting the catheter from the bag unnecessarily — along with good hand hygiene, keeping the bag below the level of the bladder, and drinking enough. These simple habits, which your nurse teaches, do most of the work of keeping you well.
Your care team
A catheter is looked after by a team. This usually includes a urologist or the hospital team, a continence (bladder and bowel) nurse specialist who trains you and troubleshoots problems, your GP, and community or district nurses who carry out changes and support you at home. The continence nurse is often your main day-to-day contact. Being shown the routine, and knowing who to call, turns something that feels overwhelming into a manageable part of life. Most people find that within a week or two the daily tasks feel ordinary, and the team is there for anything that does not.
Living a normal life and support in Singapore
The NHS is clear that a catheter should not stop you doing most of your usual activities: the equipment is discreet under clothing, and work, exercise, swimming, socialising, travel and a sex life are generally possible — your team advises what is safe for you. In Singapore, your hospital urology team and continence nurse advisor are your first point of contact, and the Society for Continence (Singapore) offers public information and advice. For any emergency, call 995, and if you are struggling emotionally, SOS is on 1767 and mindline.sg on 1771.
Related urinary catheter topics
- Indwelling catheter: what to expect
- Suprapubic catheter: what to expect
- Intermittent self-catheterisation
- Caring for your urinary catheter
- Leg bags & night bags
- Managing catheter problems
- Catheter-associated urine infections
- Emotional wellbeing & daily life
- Catheter removal (TWOC)
- Urologists in Singapore
Sources
- NHS — Urinary catheters: nhs.uk
- NHS — Urinary catheters: types: nhs.uk
- Bladder & Bowel Community — What is a catheter: bladderandbowel.org
- Society for Continence (Singapore): sfcs.org.sg
- Singapore Urological Association — Patient information: sua.sg