Reusing Blood Glucose Test Needles: Is It Safe?

Checking your blood sugar levels regularly is a crucial part of managing diabetes. But with the cost of test strips and lancets adding up, you may be tempted to reuse your lancing device needles more than once to save money.

If you’re short on time, here’s a quick answer to your question: Reusing blood glucose test needles is not recommended, as it increases your risk of infection and inaccurate test results. It’s best to use a new, sterile lancet each time you check your blood sugar.

In this comprehensive guide, we’ll explore the risks and potential complications of reusing blood glucose test needles. We’ll also provide tips for affording test supplies on a budget without compromising your health and diabetes management routine.

Why Lancet Needles Should Be Used Only Once

When it comes to managing diabetes, regular blood glucose monitoring is crucial. Lancet needles are commonly used to prick the finger and obtain a small blood sample for testing. While it may be tempting to reuse these needles to save money, it is important to understand the potential risks and drawbacks associated with this practice.

Risk of Infection

One of the primary reasons why lancet needles should never be reused is the risk of infection. Each time a needle pierces the skin, it creates a tiny wound that can introduce bacteria or other pathogens into the body.

By reusing needles, you are essentially introducing these organisms directly into your bloodstream, increasing the likelihood of developing an infection.

According to the Centers for Disease Control and Prevention (CDC), using a new, sterile lancet needle for each blood glucose test is the best practice to minimize the risk of infection. Reusing needles can lead to complications such as cellulitis, abscesses, or even bloodstream infections.

Inaccurate Test Results

Another important reason to use lancet needles only once is to ensure accurate test results. Lancet needles are designed to be sharp and sterile, providing a consistent and reliable blood sample. Reusing a needle can lead to blunting of the tip, which can affect the precision of the puncture and result in inaccurate readings.

When a needle becomes dull, it may not penetrate the skin as effectively, causing pain and difficulty in obtaining a sufficient blood sample. This can lead to repeated pricks and potentially compromised test results.

To ensure accurate readings and proper diabetes management, it is essential to use a new lancet needle for each blood glucose test.

Blunting of the Needle Tip

Continued use of a lancet needle can result in the blunting of the needle tip. This can happen due to repeated use, improper handling, or inadequate storage. A blunt needle can cause pain and discomfort during testing, as well as increase the risk of bruising or tissue damage.

Using a fresh, sharp lancet needle ensures a smooth and efficient puncture, minimizing discomfort and reducing the risk of complications. It is recommended to dispose of used needles in a sharps container to prevent accidental injuries and ensure proper disposal.

Signs That Indicate It’s Time to Change the Lancet

The lancet, also known as the needle, is an essential component of blood glucose testing for individuals with diabetes. It is used to prick the finger and draw a small drop of blood for testing blood sugar levels.

While some people may be tempted to reuse the lancet multiple times to save money, it’s important to know when it’s time to change it for safety and accuracy reasons.

Increased Pain

If you start to experience increased pain during the finger-pricking process, it may be a sign that it’s time to change the lancet. Over time, the needle can become dull or bent, making it less effective at piercing the skin. This can lead to more pain and discomfort during testing.

Remember, a fresh lancet should provide a quick and relatively painless prick.


Repeatedly using the same lancet can increase the chances of bruising. When the needle is reused, it may cause damage to the surrounding tissue, resulting in bruising around the puncture site. If you notice persistent bruising after testing, it’s a clear indication that it’s time to switch to a new lancet.

Bruising can not only be visually unappealing but can also be a sign of potential complications.

Longer Bleeding Time

Another sign that it’s time to change the lancet is if you notice the bleeding time becoming longer. A fresh lancet should create a small, quick drop of blood that is sufficient for testing. However, if you find that it takes longer for blood to appear or that you need to apply more pressure to get a sufficient sample, it’s a sign that the lancet has lost its sharpness.

In such cases, it’s best to replace the lancet to ensure accurate and efficient testing.


Reusing a lancet can increase the risk of scarring. When the needle is repeatedly inserted into the same area, it can cause tissue damage and lead to the formation of scar tissue. Not only can scarring affect the accuracy of blood glucose readings, but it can also make future testing more painful and challenging.

To prevent scarring, it’s important to use a new lancet for each blood glucose test.

Remember, while reusing lancets may seem like a cost-saving measure, it’s crucial to prioritize your safety and the accuracy of your blood glucose readings. Changing the lancet regularly can help minimize pain, bruising, longer bleeding times, and scarring.

Always consult with your healthcare provider for additional guidance on proper lancet usage and disposal.

Tips for Affording Test Strips and Lancets

Use Generic Brands

One way to save money on blood glucose test strips and lancets is to opt for generic brands. Generic brands often offer the same level of accuracy and reliability as their more expensive counterparts, but at a lower cost.

These products undergo rigorous testing to ensure they meet the same standards as the brand-name options. Additionally, many insurance companies cover generic brands, making them an affordable option for those managing diabetes.

Buy in Bulk Online

Purchasing test strips and lancets in bulk online can be a cost-effective solution. Many online retailers offer discounted prices when you buy larger quantities. By stocking up and buying in bulk, you can save money in the long run.

Just make sure to check the expiration dates before making a large purchase and store them properly to maintain their effectiveness.

Explore Discounted Test Strips

Another way to afford test strips and lancets is to look for discounted options. Some pharmacies and online retailers offer discounted or clearance products that are nearing their expiration dates. These products are still safe to use and can be an excellent way to save money.

Additionally, keep an eye out for sales, promotions, and coupons that can help reduce the cost of these essential diabetes supplies.

Ask Your Doctor for Samples

Many doctors and healthcare providers receive samples of test strips and lancets from manufacturers. These samples are often given to patients who are in need or facing financial constraints. Don’t hesitate to ask your doctor if they have any samples available.

This can be a temporary solution to help you manage your diabetes until you find a more affordable long-term option.

Look into Assistance Programs

If you’re struggling to afford test strips and lancets, it’s worth exploring assistance programs that may be available to you. Some pharmaceutical companies and non-profit organizations provide financial assistance or discount programs for individuals with diabetes.

These programs can help alleviate the financial burden of purchasing these supplies. Speak to your healthcare provider or do some research online to find out if you qualify for any assistance programs.

Proper Lancet Changing Technique

When it comes to blood glucose testing, it is essential to follow proper lancet changing technique to ensure safety and accuracy. Reusing blood glucose test needles can pose serious health risks, so it is important to understand the correct procedure for changing lancets.

Remove Used Lancet from Device

The first step in changing a lancet is to remove the used lancet from the device. Most blood glucose meters have a button or lever that allows for easy removal. It is important to be cautious while removing the lancet to avoid accidental needlestick injuries.

Once removed, be sure to dispose of the used lancet properly.

Insert New Lancet

After removing the used lancet, it is time to insert a new one. Make sure to use a sterile lancet from a fresh pack to minimize the risk of infection. Follow the instructions provided by the manufacturer to ensure proper insertion.

It is important to note that lancets are designed for single-use only and should not be reused.

Dispose of Used Lancet Safely

Proper disposal of used lancets is crucial to prevent accidental injuries and the spread of infection. Used lancets should never be thrown in the regular trash or recycling bin. Instead, they should be disposed of in a puncture-resistant container, such as a sharps container or a hard plastic bottle with a screw-on lid.

These containers can be obtained from pharmacies or healthcare providers.

Sanitize Device Regularly

Regularly sanitizing your blood glucose testing device helps maintain cleanliness and reduces the risk of contamination. Follow the manufacturer’s instructions for cleaning and disinfecting your device.

This will help ensure accurate and reliable test results, as well as prevent the buildup of germs or bacteria.

Remember, proper lancet changing technique is crucial for safe and effective blood glucose testing. By following these steps, you can minimize the risk of infection and ensure accurate results. For more information on blood glucose testing and diabetes management, you can visit reputable websites such as or

Frequently Asked Questions

How often should I change my lancet?

It is recommended to change your lancet after each use. Lancets are the small, sharp needles used to prick your finger for blood glucose testing. While it may be tempting to reuse the lancet to save money or reduce waste, it is important to prioritize your health and safety.

Using a fresh lancet for each test helps to minimize the risk of infection and ensures accurate and reliable blood glucose readings. Additionally, using a new lancet can help reduce pain and discomfort during the testing process.

Can I sterilize and reuse needles?

No, it is not safe to sterilize and reuse blood glucose test needles, including lancets. These needles are designed for single-use only and are not intended to be reused. Sterilizing the needle at home may not effectively remove all bacteria or other contaminants, increasing the risk of infection.

Reusing needles can also lead to dulling of the needle, making it more painful to use and potentially causing tissue damage.

What happens if I reuse needles anyway?

Reusing blood glucose test needles can have serious consequences for your health. Reusing needles increases the risk of infection, as bacteria and other pathogens can enter the body through the puncture site.

Infections can lead to complications such as abscesses, cellulitis, and even sepsis, a life-threatening condition. Additionally, using a dull needle can cause more pain and bruising, making the testing process more uncomfortable and potentially discouraging regular monitoring of blood glucose levels.

It is crucial to prioritize your health and safety by using fresh, single-use needles for blood glucose testing. If you have concerns about the cost or waste associated with using new lancets, consider speaking with your healthcare provider or pharmacist for alternative options.


While it may be tempting to reuse blood glucose test needles to save money, this practice comes with risks like infection and inaccurate results. For the best diabetes management, use a new, sterile lancet every time you check your blood sugar.

Talk to your doctor if you’re having trouble affording your testing supplies. With generic brands, buying in bulk, free samples and assistance programs, you can likely find more budget-friendly options without compromising your health.

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