28/10/2026
Foley Catheter: What It Is, Why It Is Used and How to Care for It
A Foley catheter is a thin, flexible tube used to drain urine from the bladder into a collection bag. It is commonly recommended when a person cannot empty their bladder normally, needs close monitoring of urine output or requires bladder drainage during or after certain medical procedures.
A Foley catheter may be used for a short period during hospital treatment or for a longer duration when a medical condition makes normal urination difficult. Although it is a commonly used medical device, proper insertion, hygiene and regular monitoring are important to reduce the risk of complications.
Understanding why a Foley catheter is needed, how it works and how to care for it can help patients and caregivers feel more comfortable during treatment. This guide from MediCiti Hospitals explains the uses, procedure, care instructions, possible risks and warning signs associated with a Foley catheter.
What Is a Foley Catheter?
A Foley catheter is a soft, flexible tube inserted through the urethra, the passage through which urine leaves the body, and into the bladder. It is also known as an indwelling urinary catheter because it can remain in place for a period of time rather than being removed immediately after urine drainage.
The catheter has a small balloon near its tip. After the catheter reaches the bladder, a healthcare professional inflates this balloon with sterile water according to the device instructions. The balloon helps keep the catheter in position and prevents it from slipping out easily.
The other end of the catheter is connected to a urine collection bag. Urine flows from the bladder through the tube and into the bag, allowing drainage without the person needing to urinate normally.
Foley catheters are available in different sizes and materials. The appropriate type depends on the patient's age, medical condition, anatomy and reason for catheterisation.
Why Is a Foley Catheter Needed?
A Foley catheter is used when normal bladder emptying is not possible, when urine output needs to be measured accurately or when continuous bladder drainage is medically necessary.
A doctor may recommend catheterisation for several reasons.
1. Urinary Retention
Urinary retention occurs when a person cannot empty the bladder or cannot pass urine at all. It may develop suddenly or gradually.
Possible causes include an enlarged prostate, urethral narrowing, certain medicines, nerve-related problems and complications following surgery.
A Foley catheter can drain urine from the bladder and help relieve discomfort caused by urinary retention. Sudden inability to urinate, particularly with lower abdominal pain or swelling, requires urgent medical assessment.
2. After Certain Surgical Procedures
A Foley catheter may be placed during or after some operations, particularly when the patient cannot safely urinate immediately after surgery or when bladder drainage is needed during recovery.
It may also be used during selected urological, gynaecological or abdominal procedures.
The catheter should generally be removed as soon as it is no longer medically necessary, because keeping it in place longer than required can increase the risk of infection.
3. Monitoring Urine Output
In some seriously ill patients, doctors need to measure urine output accurately to assess kidney function, fluid balance and response to treatment.
A Foley catheter can help healthcare professionals monitor urine output when precise measurements are clinically important, such as in selected intensive care situations.
It is not necessary for every hospital patient. The medical team determines whether the benefits of catheterisation outweigh its risks.
4. Certain Bladder or Urinary Tract Conditions
Some patients with neurological conditions, bladder dysfunction or other urinary problems may require catheterisation because the bladder does not empty effectively.
Depending on the condition, intermittent catheterisation or another treatment may be more suitable than a Foley catheter. The choice depends on the patient's individual needs and medical assessment.
5. Selected Patients Requiring Specialised Care
A catheter may sometimes be used to support comfort and care in specific clinical circumstances, including selected patients receiving end-of-life care or those with certain wounds where urine management is important.
However, a Foley catheter is not routinely recommended simply for convenience or as a substitute for appropriate toileting assistance.
How Is a Foley Catheter Inserted?
Foley catheter insertion is a medical procedure that should be performed by a trained healthcare professional using an appropriate aseptic technique.
The procedure generally involves the following steps.
Step 1: Preparation
The healthcare professional explains why the catheter is needed and prepares the required sterile equipment. The patient is positioned appropriately, and the genital area is cleaned according to the procedure protocol.
Step 2: Sterile Lubrication
A sterile lubricant is applied to the catheter to reduce friction and discomfort during insertion. In selected cases, a suitable anaesthetic lubricant may be used.
Step 3: Inserting the Catheter
The catheter is gently passed through the urethra into the bladder. The patient may experience temporary pressure or discomfort.
If resistance, significant pain or unexpected difficulty occurs, the healthcare professional should stop and reassess rather than force the catheter.
Step 4: Inflating the Balloon
Once the catheter is confirmed to be inside the bladder, the retaining balloon is inflated with the specified amount of sterile water.
Inflating the balloon before confirming correct placement can cause injury. For this reason, insertion and balloon inflation must be performed by appropriately trained personnel.
Step 5: Connecting the Collection Bag
The catheter is connected to a urine collection system, and the tubing is secured to reduce pulling and movement.
The collection bag is positioned below bladder level to support urine drainage. The healthcare professional checks that the tubing is not kinked and that urine can flow freely.
The patient may then receive instructions on catheter care, bag emptying and symptoms that require medical attention.
Important: Patients and caregivers should not attempt to insert a Foley catheter or inflate, deflate or adjust its balloon themselves unless specifically trained and instructed by their healthcare team.
How Long Can a Foley Catheter Stay In?
The duration of Foley catheter use depends on the medical reason for insertion, the patient's condition and the treating doctor's instructions.
Some patients need a catheter only for a few hours or days, while others may require longer-term drainage because of ongoing bladder-emptying problems.
There is no single duration that is appropriate for everyone. The healthcare team should review the need for the catheter regularly and remove it as soon as it is no longer required.
Longer catheter use increases the risk of catheter-associated urinary tract infections and other complications. If a patient needs ongoing catheterisation, the medical team may discuss the most appropriate device, replacement schedule and follow-up plan.
Patients should not remove the catheter themselves unless they have received specific instructions and training from their healthcare professional.
Foley Catheter Care: Important Tips for Patients and Caregivers
Proper catheter care helps maintain urine flow, reduce discomfort and lower the risk of infection. Patients who return home with a Foley catheter should receive clear instructions from their healthcare team.
1. Maintain Hand Hygiene
Wash your hands with soap and water before and after touching the catheter, tubing or collection bag.
Caregivers should follow the same precautions. Clean hands help reduce the spread of germs into the urinary drainage system.
2. Keep the Catheter Area Clean
Clean the area where the catheter enters the body daily and after bowel movements if needed. Use mild soap and water unless the healthcare team recommends another method.
Avoid applying powders, creams, antiseptics or other products around the catheter unless advised by a healthcare professional.
3. Keep the Collection Bag Below Bladder Level
Keep the urine collection bag below the level of the bladder, including while sitting or lying down. This helps prevent urine from flowing backwards.
The bag should not rest directly on the floor. Use its designated hanger or support.
4. Avoid Pulling or Kinking the Tubing
Ensure that the catheter tubing is not twisted, compressed or trapped under the body or clothing.
Secure the catheter as instructed to reduce tension on the urethra. Pulling can cause pain, irritation, bleeding or accidental displacement.
5. Empty the Urine Bag Safely
Empty the collection bag regularly, following the instructions provided by the healthcare team. Do not allow it to become excessively full.
Avoid letting the drainage outlet touch the toilet, container or other surfaces. Close the outlet properly after emptying and wash your hands afterwards.
6. Maintain Adequate Fluid Intake
Unless a doctor has advised fluid restriction, drink enough fluids to maintain hydration. The amount required depends on the patient's health, activity level and medical condition.
People with kidney disease, heart failure or other conditions affecting fluid balance should follow their clinician's specific advice rather than increasing fluid intake independently.
7. Follow Instructions for Bag Changes
Some patients use a larger drainage bag at night and a smaller bag during the day. If a change is recommended, the healthcare team should explain how to perform it safely.
Keep the drainage system closed whenever possible and follow the prescribed cleaning and replacement instructions. Do not disconnect the system unnecessarily.
8. Do Not Pull Out the Catheter
A Foley catheter is held in place by a balloon inside the bladder. Pulling it out while the balloon is inflated can cause significant injury.
If the catheter appears displaced, leaks around the insertion site or causes increasing pain, contact the healthcare team. Do not try to push it back in or manipulate the balloon yourself.
What Are the Possible Risks of a Foley Catheter?
Although Foley catheters can be medically necessary, they may cause complications. The risk depends partly on how long the catheter remains in place and the patient's underlying condition.
Catheter-Associated Urinary Tract Infection
A catheter can allow germs to enter the urinary tract, potentially causing a catheter-associated urinary tract infection (CAUTI).
Possible symptoms include fever, chills, lower abdominal discomfort or pain in the back or side. New confusion or a general decline in condition may occur in some older or seriously ill patients.
Urine that appears cloudy or has an unusual smell does not, by itself, confirm an infection. The symptoms and clinical findings should be assessed by a healthcare professional.
Bladder or Urethral Irritation
Some patients experience mild discomfort, bladder spasms or a feeling of needing to urinate despite the catheter being in place.
Persistent or severe pain should not be ignored. The healthcare team may need to check the catheter's position, drainage and possible underlying causes.
Blood in the Urine
Small amounts of blood may occasionally occur after catheter insertion, but visible blood, increasing bleeding or blood clots require medical assessment.
Bleeding may be related to irritation, injury, infection or another urinary tract condition.
Leakage Around the Catheter
Urine may sometimes leak around the catheter because of bladder spasms, blockage, constipation or other problems.
Leakage accompanied by lower abdominal pain or reduced urine drainage may indicate that the catheter is not draining properly and needs prompt assessment.
Catheter Blockage
The catheter may become blocked by sediment, blood clots or other material. Signs can include little or no urine entering the bag, lower abdominal swelling or discomfort, and leakage around the tube.
Do not attempt to flush or unblock the catheter unless you have been specifically trained and instructed to do so by the healthcare team.
When Should You Seek Medical Help?
Contact a healthcare professional if you notice persistent discomfort, new urinary symptoms or problems with catheter drainage.
Seek prompt medical advice if:
- Little or no urine is draining into the bag despite usual fluid intake.
- The lower abdomen becomes painful or swollen.
- Urine leaks around the catheter repeatedly.
- There is visible blood in the urine or blood clots.
- The catheter slips out or appears displaced.
- You experience new or worsening bladder discomfort.
Seek urgent medical care for fever with chills, severe abdominal or back pain, heavy bleeding, or a sudden deterioration in general health. Patients with a catheter who develop possible signs of a serious infection should not delay assessment.
Do not wait for every symptom to appear before seeking help. Some patients, particularly older adults or people with serious medical conditions, may develop complications without typical symptoms.
Frequently Asked Questions About Foley Catheters
1. Is inserting a Foley catheter painful?
Insertion may cause temporary pressure, discomfort or a burning sensation. Sterile lubrication and appropriate technique help reduce discomfort. Significant pain during insertion should be reported immediately.
2. Can a person walk with a Foley catheter?
Yes. Many patients can walk and perform suitable daily activities with a Foley catheter, depending on their medical condition. The bag should be secured below bladder level, and the tubing should not pull or become kinked.
3. Can I take a shower with a Foley catheter?
In many cases, showering is permitted. Follow the healthcare team's instructions, avoid pulling on the tubing and keep the drainage system properly connected. Do not disconnect the catheter simply to bathe.
4. Does a Foley catheter always cause an infection?
No. However, catheter use increases the risk of urinary tract infection, especially when the catheter remains in place for a longer period. Proper care and removing it when no longer necessary help reduce the risk.
5. What should I do if urine stops flowing into the bag?
Check whether the tubing is kinked or compressed and whether the bag is positioned below bladder level. If urine flow does not resume, or if you have pain or abdominal swelling, contact a healthcare professional promptly. Do not attempt to flush the catheter without specific training.
6. When is a Foley catheter removed?
The catheter is removed when it is no longer medically necessary, and the healthcare team determines that removal is appropriate. The timing depends on the original reason for catheterisation and the patient's ability to urinate.
Conclusion
A Foley catheter is an important medical device used to drain urine when normal bladder emptying is difficult or when continuous drainage and accurate urine-output monitoring are medically necessary. It may be used during hospital treatment, after selected surgical procedures or for certain bladder conditions.
Although catheterisation can provide important benefits, appropriate insertion, good hygiene, proper drainage and regular medical review are essential to reduce complications. Patients and caregivers should also understand the warning signs of infection, blockage and injury.
MediCiti Hospitals encourages patients to discuss urinary symptoms and catheter-care concerns with a qualified healthcare professional. If you experience difficulty passing urine, persistent bladder discomfort or problems with an existing catheter, seek medical advice to determine the appropriate next steps.