Determining the right size of an intermittent catheter can be key to unlocking comfort and efficiency in your self-catheterization routine. But how do you know what size catheter to use? Take a look at our guide to figuring out French sizes for urinary catheters.
Need help finding the right catheter size? Your healthcare provider will prescribe the right catheter size for your anatomy, but our trained Catheter Specialists are here to answer any questions, explore your insurance-covered catheter options, and help you try and choose the right product for you.
What are Catheter French Sizes?
All internal urinary catheters, including Foley catheters and intermittent catheters, are sized by a universal gauge system. This gauge system is known as French size, based on the external diameter of the catheter tube.
The French size of a catheter is determined by a simple multiplication of 3 (diameters in millimeters multiplied by 3 = the French size). For example, if a catheter has a diameter of 4.7 millimeters, then the French (Fr) size is 14.
How Do I Know What French Size My Catheter Is?
There are a couple of quick, easy ways to determine the French size of the catheter you’ve been prescribed.
It’s typically listed by your healthcare provider on the prescription or Plan of Care (POC) they write. You’ll typically see a number, such as 14 (for example), followed by “FR”. This indicates that you have been prescribed a 14 French catheter size.
To ensure you’re using the right prescribed size, check your catheter package. You’ll probably see a few different symbols on your package, but the size will be marked clearly with a number with an FR next to it (typically somewhere between 6 FR and 24 FR).
Also, you can tell your catheter’s French size by the universal color-coding system.
Catheter Size Funnel Colors
Most vinyl and silicone intermittent catheters with funnels use a universal color-coding system to help you determine the French size of a catheter. See the chart below for the most common French sizes along with their corresponding funnel color codes.
Why the Right Catheter French Size Matters
Why is determining the French size such an important part of selecting the right catheter for your needs?
Efficiency and comfort are both important elements in the self-catheterization process.
For instance, if you use a urinary catheter that’s too big for your urethra, insertion can feel difficult or cause friction. Catheterization may even feel painful if you’re using a catheter that’s too big. Also, if it’s far too large, you may not be able to insert it.
On the other hand, if you use a French size that is too small, you may find the pace of urine drainage is very slow. Also, urine may escape around the catheter tube. This can be messy, and it’ll be harder to control the flow.
Luckily, catheters are available in a wide range of French sizes to suit all body types. Urinary catheters come in a wide range of sizes, from pediatric French sizes for children to large French sizes for adults.
How to Find the Right Catheter Size for You
To determine the right French size of the catheter for your unique anatomy, you’ll need to consult your prescribing healthcare professional. They can accurately determine the right French size for your body, ensuring a hassle-free, comfortable experience when using intermittent catheters.
Next, you’ll be ready to get your catheter supplies from 180 Medical!
Did you know that many health insurance plans, including Medicare, will cover sterile-use catheters? We can verify your insurance coverage to let you know how your policy will cover your catheter needs. Plus, 180 Medical provides discreet, free delivery, and we always follow up to ensure you’re fully satisfied.
Ready to get started? Contact 180 Medical today! Our friendly Catheter Specialists will be happy to find the right catheter for your needs.
Urinary Catheter French Size FAQs
Here are some answers to common questions about catheter French sizes.
Who determines what catheter size I need to use?
Your prescribing healthcare provider, such as a urologist, physician assistant, nurse practitioner, or your general physician, will determine which size works best for your body.
What does Fr mean in catheter sizing?
Fr stands for French, which is the standard sizing system for intermittent catheters and Foley catheters.
Is a higher French size catheter bigger?
Yes. The higher the French size, the larger the catheter diameter. For example, a 16 French catheter is slightly larger than a 14 French catheter.
Remember, your healthcare provider will prescribe the size that best fits your anatomy and medical needs.
Can using the wrong catheter size cause pain?
Yes, it’s possible. An intermittent catheter that is too large for your anatomy can cause friction, discomfort, or even difficulty with insertion. On the other hand, a catheter that is too small may drain more slowly or allow urine to leak around the tube.
If you think your catheter size isn’t right, contact your healthcare provider. 180 Medical’s Catheter Specialists are also here to help you explore alternate options in your prescribed size if you’re experiencing discomfort or pain during catheterization.
Are French sizes the same across all catheter brands?
French sizes are universal and standardized across catheter brands. So a 14 French Coloplast catheter will be the same size as a 14 French Cure catheter. It refers to the same general diameter measurement of the catheter tube.
However, comfort can still vary depending on the catheter’s material, coating, tip style, firmness, and flexibility. Plus, if you’re using an uncoated catheter, ensure you use an appropriate amount of sterile lubricant to reduce friction and ease insertion each time.
Can I call 180 Medical to change my catheter size?
If you think you may need a different catheter size, talk with your doctor or prescribing healthcare provider first. Your catheter size is part of your prescription, so we can’t change the catheter size in your order without your prescriber’s authorization.
However, you’re always welcome to contact us if you’re having issues with your current catheter supplies. Our Catheter Specialists can listen to your concerns, help you understand your available product options, and work with your healthcare provider if an updated prescription or documentation is needed.
Can I request samples in my catheter size?
Yes. 180 Medical is here to help you explore catheter options in your prescribed size. It’s our goal to ensure you feel comfortable and confident with the supplies you’re using. We can also review your insurance coverage and help you find options from trusted catheter brands.
Is French size the same as catheter length?
No. French size measures the width or diameter of the tube. Length refers to the measurement of the tube from the insertion tip to the funnel end.
There are three main types of catheter lengths available, each tailored to your unique needs and anatomy.
Pediatric Length Catheters
Pediatric length catheters are typically around 10 inches long.
The smallest pediatric catheter French sizes (5 or 6 French) are typically for babies and infants. Children and adolescents typically use pediatric catheters between 8 and 12 French.
Female Length Catheters
Because the female urethra is much shorter than the average male urethra, Because of this, female length catheters are much more compact than standard unisex or male length catheters. Female catheter lengths range from 3.5 to 8 inches. However, female catheters are typically about 6 inches long.
While every anatomy is different, most adult women use female catheters with French sizes ranging from 12 to 16 Fr.
Male Length Catheters
Male-length catheters, also known as unisex or universal catheters for any gender, typically measure around 16 inches.
Keep in mind that every person is different, and no one size or length will suit everyone. However, many adult men use male catheters with French sizes ranging from 12 to 24. The average or most common French size is around 14 to 18 for most male catheter users.
We have male catheters available in all types and sizes from leading brands, including male pocket catheters.
Ready to try free samples and find what catheter feels best for your needs? Just answer a few quick questions, and our caring experts will reach out shortly!
Disclaimer: This article is for informational purposes only and is not intended as medical advice. Information provided on 180medical.com should not be used as a substitute for medical advice, diagnosis, or treatment from a qualified healthcare professional. Please consult your healthcare provider with any questions about your condition, treatment, or medical supply needs.
