Physiotherapy electrode patches are safe and convenient, making them a helpful tool for many families seeking rehabilitation. However, did you know that they are not suitable for everyone? Using them on the wrong person can not only be ineffective but may also cause harm.
Today, we'll specifically discuss which three types of people should use physiotherapy electrode patches with caution or avoid them altogether. If you or a family member belongs to any of these categories, please read on.
I. Those with broken or infected skin – Never apply them.
This is the easiest to understand, yet also the easiest to overlook.
Contraindications: Skin problems such as eczema, ulcers, burns, cuts, rashes, fungal infections (such as tinea corporis), and allergic dermatitis. If the skin surface is not intact, has redness, swelling, oozing, scabbing, or breaks, electrode patches should absolutely not be applied.
Why can't you use them?
After the electrode patch is applied, a relatively sealed environment is created, preventing sweat from evaporating and allowing bacteria to multiply more easily, potentially worsening infection.
When current passes through broken skin, the resistance drops sharply, causing a sudden increase in local current density, which can cause stinging or even burns.
The damaged skin barrier function is compromised, allowing chemicals in the electrode patch (such as cross-linking agents in the hydrogel) to more easily enter the body, triggering allergic or toxic reactions.
Correct practice: Wait until the skin is completely healed before using the patch. If you are unsure whether the wound has healed, consult a doctor.
II. Pregnant women – Absolutely prohibited on the abdomen and lumbosacral region
Pregnant women are a special group, and the use of physiotherapy electrode patches requires extra caution.
Absolutely prohibited areas: Abdomen and lumbosacral region (the area directly opposite the uterus in the lower back).
Why can't they be used?
Electrical stimulation may cause uterine smooth muscle contractions, increasing the risk of miscarriage or premature birth.
Currently, there is insufficient research to prove that low-frequency/medium-frequency currents are absolutely safe for the fetus. For maximum protection, current should be avoided passing through the uterine area.
Acupoints in the lumbosacral region (such as the Baliao points) are considered strong stimulation sites for "promoting blood circulation and removing blood stasis" in traditional medicine, and are also contraindicated for pregnant women.
Relatively cautious areas: Limbs (such as shoulders, knees, hands, and feet). These can be used judiciously with a doctor's permission and under very low intensity. However, pregnant women are not advised to use any physical therapy devices on their own.
Correct practice: For any pain or discomfort during pregnancy, consult an obstetrician first, rather than trying to resolve it yourself with electrode pads.
III. Those with reduced skin sensation – Use with caution
This group of people often doesn't know they "cannot use" these devices, and are precisely the most prone to problems.
Who includes this group?
Patients with diabetic neuropathy (common symptoms include numbness and decreased sensation in the hands and feet)
Patients with paraplegia due to spinal cord injury
Patients who are bedridden for extended periods, have impaired consciousness, or suffer from Alzheimer's disease
Patients currently using strong analgesics or anesthetics
Why use with caution?
During use of physiotherapy electrode patches, if the current intensity is too high or the local temperature is too high (for electrodes with heating functions), normal skin will emit a "tingling" or "burning" alarm signal, reminding you to reduce the intensity or stop. However, people with dulled senses will not receive this alarm, and by the time they notice it, they may have already suffered low-temperature burns or electrical burns without realizing it.
Correct practice: These patients must use physiotherapy electrode patches under the supervision of medical personnel, or choose dummy electrodes with no current output and only physical fixation for passive training. Self-use at home is not recommended.
