TENS machines and arthritis: What you need to know

Many people with arthritis look for ways to manage pain and stiffness alongside exercise, medication, and other supports. A TENS machine is one option that is sometimes recommended, particularly for osteoarthritis pain. 

TENS stands for Transcutaneous Electrical Nerve Stimulation. It is a small, battery-operated device that delivers mild electrical pulses through adhesive pads placed on the skin near a painful area. Most people describe the sensation as a tingling or buzzing feeling, which should feel noticeable but not uncomfortable. 

The idea behind TENS is that it may help reduce pain in two main ways: by interrupting pain signals travelling to the brain and by stimulating the body’s natural pain-relieving chemicals (endorphins). 

Research shows mixed but generally moderate support for TENS as a short-term pain relief option for some people with osteoarthritis, particularly knee osteoarthritis. Some studies show meaningful reductions in pain during or shortly after use, while others show little difference compared with placebo treatment. Overall, it is not considered a cure and does not repair joint damage, but it may help with symptom relief for some people. 

People often find TENS most useful during flare-ups, before or after activity, or at times when pain is limiting movement. It may make it easier to stay active, which is important for maintaining joint strength and function over time. 

It tends to work best when used alongside other arthritis management strategies such as gentle exercise, strengthening, pacing activities, and heat. 

TENS is generally considered safe when used correctly. However, it is not suitable for everyone. People with pacemakers or other implanted electrical devices, certain heart conditions, epilepsy, or who are pregnant should check with a health professional before use. Some people may also experience mild skin irritation where the pads are placed. 

TENS machines can be bought without a prescription at pharmacies and online. However, many people benefit from learning how to use it properly before purchasing or relying on it. 

It is often recommended to ask your doctor for a referral to a physiotherapist so you can trial it first. A physiotherapist can show you where to place the pads, how to adjust the settings, and how long to use it for. People are often encouraged to try it for a few hours at a time initially, building up as they get used to it. 

In some cases, you may be able to borrow a machine for a set period to see whether it makes a meaningful difference before deciding to buy one. 

TENS machines do not treat the underlying cause of arthritis, but they may provide helpful short-term pain relief for some people. Because responses vary, it can be worth trialing under guidance from a physiotherapist or health professional to see if it makes a meaningful difference for you. 

For many people, it becomes one part of a broader arthritis self-management plan rather than a stand-alone solution.