Recovery after surgery can test both patience and resilience. Managing pain, regaining movement, and finding ways to stay comfortable are part of the process. While prescribed medication plays an important role, more Australians are turning to complementary options to assist with pain control and recovery. One approach that’s gained consistent attention is the use of TENS machines in managing pain after surgery.

What is a TENS Machine and How Does It Block Pain?

A TENS machine—short for Transcutaneous Electrical Nerve Stimulation—works through small electrode pads placed on the skin. These pads send controlled electrical pulses to the underlying nerves. The idea behind this method is known as the gate control theory of pain. In simple terms, these pulses help interrupt the transmission of pain signals to the brain, reducing how strongly pain is perceived.

Along with that, TENS therapy can help stimulate the release of endorphins—the body’s own natural chemicals that reduce discomfort. This combination can make TENS therapy a valuable addition to post-operative pain relief options, supporting recovery while helping manage discomfort through non-drug means.

Unlike more intense forms of stimulation, TENS devices use gentle, low-frequency pulses. These pulses primarily target nerves but can also cause mild muscle contractions, especially when placed over larger muscle groups. This effect can support circulation and tissue comfort, particularly during early rehabilitation phases.

The Key Benefits of Using TENS for Post-Surgical Pain

Using a TENS machine for post-surgical pain can help complement other aspects of your recovery plan. It’s not intended to replace professional medical care or medication but to work alongside it.

Here are a few ways TENS can contribute to recovery:

• Reduced reliance on medication: Many users find that TENS helps manage discomfort between doses of prescribed pain relief, offering another layer of support.
  
• Localised comfort: Electrode pads can be placed around specific areas of discomfort—such as near the surgical site or where muscles feel tense. This provides targeted stimulation rather than generalised relief.
  
• Adjustable intensity: The stimulation level can be easily increased or decreased, making it adaptable to your comfort level.
  
• Gentle therapy options: The PainPod M model uses a mild combination mode that provides treatment for those who prefer less noticeable stimulation—ideal for users sensitive to TENS sensations.
  
• Dual-function support: Devices such as the PainPod combine both TENS and EMS modes, helping users manage pain and support muscle activity without needing two separate machines.
  

These benefits make TENS a practical, portable, and flexible option during the post-surgery phase—particularly for those looking to take a more active role in their recovery journey.

Is TENS Effective for Your Type of Surgery?

The effectiveness of TENS therapy can vary depending on the surgery and the individual. Many people find it beneficial for procedures involving joints, soft tissues, or muscles—such as knee replacements, shoulder repairs, or abdominal surgeries—where lingering discomfort or stiffness can slow rehabilitation.

TENS therapy may be particularly helpful for incision pain, as well as soreness in muscles that have been inactive during post-surgery recovery. However, everyone’s healing process is unique. The best results usually come when TENS is used as part of a broader plan recommended by your healthcare provider—alongside physiotherapy, medication, and proper rest.

If you’d like to understand more about how this technology fits into recovery plans, our overview of how TENS therapy works explores its core principles and uses.

How to Use a TENS Unit After Surgery

Learning how to use a TENS unit for surgical recovery properly ensures the device supports healing and contributes to overall wellness without interfering with your post-surgical recovery process.

• Consult your healthcare provider: Always seek approval before using a TENS device post-surgery, particularly if you have stitches, implants, or other medical considerations.
  
• Avoid direct contact with surgical sites: Do not place electrodes over wounds, stitches, or healing incisions. Instead, position them nearby on unbroken skin.
  
• Follow electrode placement guidance: Proper placement can influence how well the therapy works.
  
• Adjust intensity gradually: Begin with the lowest setting and increase until you feel a comfortable, pulsing sensation—never to the point of pain.
  
• Monitor your body’s feedback: If you experience irritation, discomfort, or dizziness, stop using the device and consult your clinician before continuing.

While TENS therapy primarily targets nerves, you might notice mild muscle movement when placed over muscular areas. These small contractions are normal and can aid in maintaining muscle tone during limited activity phases of recovery.

Precautions: When to Talk to Your Doctor First

Although TENS therapy can be a valuable complementary option, it isn’t suitable for everyone. People with certain medical devices—such as pacemakers—or specific heart conditions should avoid use unless advised otherwise by a healthcare professional. The same applies to those who are pregnant or have specific nerve-related conditions.

Your doctor or physiotherapist can guide you on when how to use TENS unit after surgery recovery, including duration, placement, and settings. Ensuring the therapy aligns with your treatment plan helps you get the most benefit from it.

Combining TENS and EMS in One Device

PainPod devices provide both TENS and EMS modes in a single unit, except for the PainPod M, which uses a specialised combination mode. This means you can support both nerve stimulation and muscle conditioning in one system—useful during surgical recovery and for ongoing muscle maintenance.

The PainPod is particularly popular for this reason. It offers multiple TENS and EMS settings, allowing users to tailor sessions to different stages of recovery—whether easing discomfort, improving circulation, or reactivating muscles that have been inactive.

By combining two functions, users avoid needing to purchase separate devices for pain management and muscle stimulation. It’s a thoughtful design for anyone looking for versatility and convenience in one tool.

Supporting Your Recovery Journey

Healing after surgery is rarely straightforward. Some days feel easier than others, and managing discomfort can make a big difference in how confidently you move forward. TENS therapy offers a complementary way to manage post-surgical pain, working alongside medical care and rehabilitation to support comfort and progress.

If you’re exploring options for your recovery plan, consider learning more about the TENS & EMS device. Each model offers different strengths—whether you prefer the versatility of full TENS/EMS modes or the gentle touch of a low-sensation combination setting.

TENS machines have become an important part of post-surgery recovery for many people, offering a way to engage actively with the healing process. When used thoughtfully and under professional guidance, they can help make recovery more manageable—one pulse at a time.

References

• Bjordal, J. M., Johnson, M. I., Lopes-Martins, R. A., et al. (2003). Transcutaneous electrical nerve stimulation (TENS) can reduce postoperative analgesic consumption: a meta-analysis with assessment of optimal treatment parameters for postoperative pain. European Journal of Pain, 7(2), 181–188.
• Chen, C. C., Johnson, M. I., & McDonough, S. M. (2020). The influence of TENS dose and treatment time on analgesic efficacy in adults with postoperative pain: a systematic review and meta-analysis. Pain, 161(3), 475–485.
• Sluka, K. A., & Walsh, D. M. (2003). Transcutaneous electrical nerve stimulation: Basic science mechanisms and clinical effectiveness. The Journal of Pain, 4(3), 109–121.
• Rakel, B. A., & Frantz, R. A. (2003). Effectiveness of transcutaneous electrical nerve stimulation on postoperative pain with movement. Journal of Pain, 4(8), 455–464.
  

Resources

•  https://www.healthdirect.gov.au/tens-machines 
•  https://www.nhs.uk/conditions/transcutaneous-electrical-nerve-stimulation-tens/
•  https://pubmed.ncbi.nlm.nih.gov/
• https://www.tga.gov.au/resources/publication/publications/therapeutic-goods-advertising-code