Common Mistakes When Using TENS for Arthritis

If you are using a TENS machine for arthritis pain, it is important to understand what the treatment can and cannot do. The most common TENS mistakes for arthritis pain include placing electrodes incorrectly, turning the intensity up too quickly, using worn electrode pads, ignoring damaged leads and expecting TENS to treat the underlying arthritis.

TENS may provide temporary pain relief for some people, but it does not work for everyone. The NHS says TENS can help certain types of short- and long-term pain, including pain associated with arthritis. However, the evidence is not the same for every form of arthritis. For osteoarthritis, NICE currently recommends not offering TENS because there is insufficient evidence of benefit.

The safest approach is to use TENS as a potential pain-management tool, follow your machine’s instructions, use appropriate electrode placement and intensity, and seek medical advice when symptoms need assessment.

Quick answer: What are the most common TENS mistakes for arthritis pain?

The mistakes to avoid include:

• Placing electrode pads too close together or in unsuitable locations.
• Applying pads to broken, infected, irritated or numb skin.
• Putting standard TENS electrodes on the neck, mouth or near the eyes.
• Turning the intensity up too quickly or making stimulation painful.
• Assuming stronger stimulation means better pain relief.
• Continuing to use old electrode pads that no longer stick properly.
• Ignoring damaged leads, loose connections or a weak battery.
• Using TENS for longer than recommended by your machine or healthcare professional.
• Assuming TENS will cure arthritis or repair a damaged joint.
• Treating unexplained joint symptoms as arthritis without assessment.
• Continuing to rely on TENS when symptoms are suddenly severe, swollen, hot or otherwise unusual.

Understanding these problems can make arthritis pain TENS therapy safer and help you get more reliable use from your equipment.

Mistake 1: Assuming TENS works for every type of arthritis

One of the first mistakes is treating “arthritis” as one condition.

Arthritis includes several different conditions, including osteoarthritis and rheumatoid arthritis. Their causes, symptoms and recommended treatments can differ.

The NHS says TENS may help certain types of pain, including pain associated with arthritis, but also states that it does not work for everyone.

For osteoarthritis, NICE specifically recommends not offering TENS because there is insufficient evidence of benefit.

For rheumatoid arthritis, NHS guidance says physiotherapy may include TENS as one approach to pain relief.

This means you should not assume that a TENS machine is an appropriate treatment simply because you have been told you have “arthritis”.

If you are unsure about your diagnosis or whether TENS is suitable, speak to a healthcare professional.

Mistake 2: Putting the pads directly on the most painful spot

It is understandable to think that the electrode should sit directly over the point where the joint hurts most.

That is not necessarily the correct approach.

The general TENS principle is to position electrodes on or around the painful area, following the instructions supplied with your machine or advice from a healthcare professional. Great Ormond Street Hospital explains that electrodes are generally placed at the site of pain, although healthcare professionals may sometimes recommend positioning along a nerve pathway.

The exact position can depend on:

• The affected joint.
• The size of the electrode.
• The location and distribution of your pain.
• Your TENS machine.
• Any professional guidance you have received.

For a detailed explanation of positioning, see our guide to Best TENS Pad Placement for Arthritis.

Mistake 3: Putting electrodes too close together

Electrodes should not touch.

This can be particularly easy to get wrong when using TENS around small joints such as the wrist, hand or ankle.

The Royal National Orthopaedic Hospital recommends placing pads either side of the painful area and keeping them at least 2.5 cm (1 inch) apart.

Cambridge University Hospitals similarly advises keeping electrodes at least around 2 cm apart.

If the joint is small, choose an electrode size that allows appropriate placement rather than forcing large pads into a confined area.

Mistake 4: Applying TENS to unsuitable skin

Electrode pads should be applied to clean, dry and intact skin.

The NHS advises against using TENS on irritated, broken or infected skin, as well as areas with reduced or absent sensation.

Before applying electrode pads for arthritis pain, check the skin carefully.

Avoid using electrodes over:

• Open wounds.
• Cuts or broken skin.
• Infected areas.
• Significantly irritated skin.
• Areas where you have reduced sensation.

If the skin becomes itchy, irritated or red during TENS, switch the machine off and remove the electrodes.

Do not try to solve skin irritation by lowering the intensity and continuing automatically. The skin needs to be assessed first.

Mistake 5: Putting TENS pads on the neck

This is particularly important if arthritis affects the shoulder or upper body.

Pain can sometimes be felt around several neighbouring areas, making it tempting to move the electrodes higher towards the neck.

Do not do this with standard TENS.

The NHS specifically advises not to use TENS on the neck, mouth or eyes.

Some NHS hospital guidance also specifically warns against placing electrodes on the front or sides of the neck.

If your arthritis-related discomfort extends towards your neck, ask a healthcare professional about appropriate management rather than placing standard TENS electrodes directly onto the neck.

Mistake 6: Turning the intensity up too quickly

One of the most common TENS mistakes for arthritis pain is starting at an unnecessarily high intensity.

The NHS recommends starting with the intensity low and gradually increasing it until you feel tingling that is not painful.

The Royal National Orthopaedic Hospital describes the desired sensation as strong but comfortable.

A practical approach is:

Start low → increase slowly → stop at a strong but comfortable sensation.

If the stimulation becomes painful, reduce the intensity.

You do not need to prove that you can tolerate the highest setting on your machine.

Mistake 7: Assuming stronger stimulation means better pain relief

A higher intensity does not automatically mean better results.

TENS should generally produce a clear tingling or buzzing sensation without pain. Increasing the intensity beyond a comfortable level can make the experience unpleasant without necessarily improving pain relief.

If you find yourself continually increasing the intensity without noticing useful relief, check the basics first:

• Electrode placement.
• Pad condition.
• Skin contact.
• Lead connections.
• Battery condition.
• Programme selection.

If the machine feels weak, our guide on why a TENS machine feels weak and what to check covers common equipment-related causes.

Mistake 8: Using worn-out electrode pads

Electrode pads are consumable accessories.

With repeated use, their adhesive properties gradually decline. Leeds Teaching Hospitals advises checking whether pads are still sticking properly and replacing them when they lose their stickiness.

Worn pads can result in:

• Poor skin contact.
• Inconsistent stimulation.
• A weaker sensation.
• Pads lifting during a session.
• A temptation to increase the intensity unnecessarily.

If your TENS machine suddenly feels weaker than usual, do not immediately assume that the machine itself has failed.

Check the electrode pads first.

If they are no longer sticking securely, replacing them may be the simplest solution.

Mistake 9: Ignoring damaged leads and connections

The electrode pads are not the only components that can wear out.

Leads can become damaged, plugs can become loose and connections can deteriorate with repeated use.

Before a session, check:

• The leads for visible damage.
• The connection between the leads and machine.
• The connection between the leads and electrodes.
• The battery or power supply.
• Whether the connectors are compatible.

If the stimulation is inconsistent or unexpectedly weak, troubleshoot the equipment before increasing intensity.

Using the wrong replacement lead can also create compatibility problems, so check connector specifications carefully before purchasing replacements.

Mistake 10: Using dirty or poorly prepared skin

Even good-quality electrodes need appropriate skin contact.

Creams, oils, sweat and other products can affect adhesion and make the electrodes less reliable.

Before applying pads:

1. Clean the area.
2. Dry it thoroughly.
3. Avoid applying creams or oils underneath the electrodes.
4. Check the skin for irritation.
5. Apply the electrodes firmly but without forcing them onto unsuitable skin.

Cambridge University Hospitals recommends clean, dry and unbroken skin for electrode application.

If your pads repeatedly fall off, poor skin preparation or worn electrodes may be contributing to the problem.

Mistake 11: Changing every TENS setting at once

Some machines allow you to adjust frequency, pulse width, intensity and programme.

This flexibility can be useful, but changing everything simultaneously makes it difficult to understand what actually improved or worsened the experience.

If your machine allows manual adjustment, change one setting at a time.

For example, if your intensity is comfortable but you want to experiment with the sensation, make a modest change to frequency while keeping the other controls unchanged.

There is no single combination that can be described as the universally best TENS settings for arthritis pain.

NHS guidance itself gives different examples of TENS settings across different services. Leeds Teaching Hospitals, for example, gives 70 Hz and 150 µs as one example while explaining that settings can be changed.

For more detail, see our guide to Best TENS Settings for Arthritis.

Mistake 12: Using TENS for too long

Longer TENS sessions are not automatically better.

Different NHS services give different recommendations. The Royal National Orthopaedic Hospital advises a maximum of 60 minutes at a time, usually up to three times a day, while Cambridge University Hospitals advises starting with around 30–60 minutes and increasing use if helpful.

Because guidance varies, follow the instructions supplied with your particular TENS machine and any individual advice from a healthcare professional.

You should also never sleep with TENS switched on.

The NHS advises against using TENS while sleeping, bathing or showering, driving or operating machinery.

Mistake 13: Expecting TENS to cure arthritis

TENS is not a cure for arthritis.

The NHS describes TENS as a way of providing temporary pain relief and states that it does not work for everyone.

It should therefore not be presented as a method of:

• Repairing damaged cartilage.
• Reversing arthritis.
• Curing joint inflammation.
• Restoring a damaged joint.
• Preventing arthritis from progressing.

For osteoarthritis, NICE recommends therapeutic exercise and, where appropriate, weight management as core treatments, rather than TENS.

If TENS provides temporary relief, it can potentially be one part of your pain-management approach. It should not replace appropriate treatment for the underlying condition.

Mistake 14: Assuming temporary relief means the problem is fixed

Pain relief can be useful, but it can also create a false sense that the underlying problem has disappeared.

If your symptoms return when you stop using TENS, that does not necessarily mean the machine has failed. TENS is generally intended to provide temporary symptom relief rather than permanently remove the source of pain. The Royal National Orthopaedic Hospital describes TENS as providing short-term relief while the machine is switched on.

Continue following the wider management plan recommended for your arthritis.

If symptoms are changing or worsening, reassess the situation rather than simply increasing TENS use.

Mistake 15: Ignoring a suddenly hot, swollen or severely painful joint

This is one of the most important mistakes to avoid.

If you have arthritis, it can be tempting to assume that every episode of joint pain is simply another flare-up.

However, sudden severe pain and swelling can require medical assessment.

The NHS advises urgent medical help for sudden severe pain and swelling in one joint, particularly if the joint is hot or you feel unwell.

Do not use TENS simply to mask these symptoms and delay assessment.

Similarly, if you develop unexplained joint symptoms and have never been diagnosed with arthritis, seek appropriate medical advice rather than self-diagnosing.

Mistake 16: Ignoring reduced sensation

TENS relies on your ability to perceive the stimulation.

If an area has reduced or absent sensation, you may not be able to judge the intensity properly.

NHS hospital guidance advises against using TENS over areas with reduced sensation.

If you have numbness around an arthritic joint, ask a healthcare professional whether TENS is appropriate before placing electrodes there.

Mistake 17: Choosing a machine without checking replacement-pad compatibility

It is easy to spend time comparing programmes and intensity levels while forgetting about replacement electrodes.

However, electrode pads will eventually need replacing.

Before buying a TENS machine for arthritis pain, check:

What to check	Why it matters
Intensity levels	Allows gradual adjustment
Number of channels	Determines electrode flexibility
Programmes	Provides different stimulation options
Frequency controls	Useful if you want manual adjustment
Pulse-width controls	Gives additional control where available
Pad connector	Ensures replacement pads fit
Replacement-pad availability	Important for ongoing use
Replacement-pad price	Affects long-term cost
Lead compatibility	Helps avoid connection problems
Portability	Useful for appropriate use away from home
Timer	Convenient for managing sessions
CE/UKCA marking	Relevant when purchasing in the UK

The NHS recommends checking for CE or UKCA marking when purchasing a TENS machine.

How to avoid common TENS mistakes

A simple routine can make TENS use easier and safer.

Before using TENS

• Check the machine and battery.
• Inspect the leads.
• Check the electrode pads.
• Clean and dry the skin.
• Make sure the skin is intact.
• Position electrodes correctly.
• Ensure the electrodes are separated.
• Switch the machine off before attaching the pads.

During use

• Start at low intensity.
• Increase gradually.
• Aim for strong but comfortable tingling.
• Reduce the intensity if stimulation becomes painful.
• Stop if significant skin irritation develops.
• Follow your machine’s recommended session duration.

After use

• Switch the machine off before removing the electrodes.
• Remove the pads gently.
• Store reusable electrodes according to the manufacturer’s instructions.
• Check the skin.
• Store the machine and leads appropriately.

The NHS specifically recommends switching the machine off before applying or removing the electrodes.

TENS mistakes checklist for arthritis pain

Before each session, ask yourself:

• Am I using TENS for a diagnosed or appropriately assessed condition?
• Are my pads positioned on or around the painful area?
• Are the electrodes separated?
• Is my skin clean, dry and intact?
• Are my pads still in good condition?
• Are my leads undamaged?
• Are the connectors secure and compatible?
• Have I started with a low intensity?
• Does the stimulation feel strong but comfortable?
• Am I avoiding the neck, mouth and eyes?
• Am I avoiding numb, irritated, broken or infected skin?
• Am I following the machine’s instructions?
• Am I avoiding TENS while sleeping, bathing, driving or operating machinery?
• Have I sought medical advice if my symptoms have changed or become severe?

This checklist can help catch many of the common problems before they become frustrating or uncomfortable.

Does TENS help arthritis pain?

TENS may provide temporary pain relief for some people, but it does not work for everyone. The NHS says TENS can help certain types of pain associated with arthritis.

However, the evidence varies between conditions. NICE currently recommends not offering TENS for osteoarthritis because there is insufficient evidence of benefit.

For rheumatoid arthritis, NHS guidance includes TENS as one possible pain-relief approach within physiotherapy.

If TENS does not help, increasing the intensity indefinitely is not the answer. Consider whether the treatment is appropriate for your condition and speak to a healthcare professional where necessary.

Where should TENS pads go for arthritis pain?

Pads are generally placed on or around the painful area using clean, dry and intact skin. Exact placement depends on the affected joint, electrode size, TENS machine and any professional guidance you have received.

Keep the electrodes separated and do not place standard TENS pads on the neck, mouth or near the eyes.

For detailed placement guidance, see our article on Best TENS Pad Placement for Arthritis.

How long can TENS be used for arthritis pain?

There is no single duration that applies to everyone. The Royal National Orthopaedic Hospital recommends up to 60 minutes at a time, usually up to three times a day, while Cambridge University Hospitals recommends starting with around 30–60 minutes.

Follow the instructions supplied with your machine and any individual professional advice. Never sleep with TENS switched on.

Can I use TENS during an arthritis flare?

Do not automatically assume that every flare is suitable for TENS. If the joint becomes suddenly severely painful, swollen, hot or red, particularly if you feel unwell, seek medical advice.

TENS should not be used to delay assessment of symptoms that may require medical attention.

Why does my TENS machine feel weak?

A weak sensation can have several causes. Check the electrode pads, skin contact, leads, connections and battery before simply increasing intensity. Worn electrode pads can lose their stickiness over time.

Should TENS feel painful?

No. The NHS recommends gradually increasing intensity until you feel tingling without pain. If the stimulation becomes painful, reduce the intensity or stop the session.

Can TENS cure arthritis?

No. TENS is a pain-management technique that may provide temporary relief for some people. It does not cure arthritis or reverse underlying joint changes.

Do TENS pads need replacing?

Yes. Reusable pads eventually lose their adhesive properties. If they no longer stick properly or stimulation becomes inconsistent, replacement pads may be needed.

TENS Machines; Replacement Electrode Pads

If you use TENS regularly, choosing compatible replacement electrodes is just as important as choosing the machine itself.

TensLeads offers TENS Machines; Replacement Electrode Pads in a range of sizes and configurations. This includes reusable electrode pads and TENS machines designed for different user requirements.

Before ordering, check the connector specification of your machine. Using compatible pads helps ensure the electrodes fit the system correctly and can make ongoing TENS use more convenient.

If your existing pads have become worn or no longer adhere properly, replacing them may be more useful than simply increasing the intensity of the machine.

Explore TENS Machines; Replacement Electrode Pads

Explore TENS Machines; Replacement Electrode Pads

Key Takeaways

• The most common TENS mistakes for arthritis pain involve poor electrode placement, excessive intensity and poorly maintained equipment.
• Do not assume that TENS is appropriate for every type of arthritis.
• The NHS says TENS may provide temporary relief for certain types of pain, including arthritis pain, but it does not work for everyone.
• NICE currently recommends not offering TENS for osteoarthritis because evidence of benefit is insufficient.
• Place electrodes on or around the painful area according to your machine’s instructions or professional advice.
• Keep electrodes separated and use clean, dry and intact skin.
• Never place standard TENS electrodes on the neck, mouth or near the eyes.
• Start at low intensity and gradually increase towards a strong but comfortable tingling sensation.
• Do not assume that higher intensity means better pain relief.
• Replace worn electrode pads when they lose their adhesive properties.
• Check leads, connections and batteries if stimulation suddenly feels weak.
• Follow your machine’s instructions for session duration and never sleep with TENS switched on.
• Do not use TENS while bathing, showering, driving or operating machinery.
• Do not use TENS to mask sudden severe joint pain, significant swelling, a hot or red joint or symptoms accompanied by feeling unwell.
• TENS should be considered a possible pain-management tool, not a cure for arthritis.

Safety Disclaimer

This article is for general information only and is not a substitute for medical diagnosis or individual treatment advice. TENS does not work for everyone and is not a cure for arthritis. Do not use TENS if you have a pacemaker or epilepsy, and during pregnancy unless advised by a doctor or midwife. Do not use it on broken, infected, irritated or numb skin, or on the neck, mouth or eyes. Do not use TENS while sleeping, bathing, driving or operating machinery. If you have sudden severe joint pain or swelling, a hot or red joint, feel unwell, or have unexplained joint symptoms, seek appropriate medical advice rather than relying on TENS. Always follow the instructions supplied with your TENS machine and speak to a qualified healthcare professional if you are unsure whether TENS is suitable for you.