Australian Registered Medical Device

Same day dispatch

12-month warranty

Professionally endorsed

AU Registered Medical Device
12-month warranty
Same day dispatch
Professionally endorsed

A TENS Unit: Benefits, How It Works, and How to Use

A female newscaster reporting about TENS as a new faster pain relief

A TENS unit, short for Transcutaneous Electrical Nerve Stimulation, is an electronic device that uses electrical currents as a method of pain relief. This therapy presents numerous benefits. It is non-invasive, drug-free, customisable, and cost-effective. Furthermore, TENS works by leveraging several analgesic mechanisms. This includes the pain gate mechanism and the release of endorphins. Using a TENS device is easy. One must place the electrode patches, turn on the unit, and adjust the settings.

Traditional pain management solutions may include medication and surgeries. However, they may not always provide adequate relief. Conversely, TENS is a popular form of pain relief that is safe and effective. It has been used by medical professionals, pain clinics, and physical therapists for many years. This can treat different types of pain, providing relief to many individuals. The following sections will present the benefits of a TENS electrical device, including how it works and how to use it.

Benefits of Using a TENS Unit

A TENS unit offers a range of benefits. Firstly, TENS therapy provides targeted relief. It allows users to conduct on specific areas of discomfort. Secondly, TENS treatment is versatile. It enables individuals to use it for various types of pain. Thirdly, the non-invasive and drug-free nature of TENS is advantageous. It offers relief without the need for medications, incisions, injections, or surgical operations.

Fourthly, using TENS is cost-effective. It offers a valuable long-term solution for pain relief. This can potentially reduce the need for ongoing medication or frequent visits to medical practitioners or healthcare providers. Furthermore, TENS devices are mostly compact and lightweight. This portable natural makes it a convenient option for individuals. They can use or undergo therapy while at home or on the go.

As a complementary therapy, the TENS device can be used in conjunction with other methods of pain relief. It can complement physical therapies, exercise programs, and even pharmaceuticals. Moreover, the use of TENS only provides minimal side effects. This makes it a favourable option for individuals seeking relief without the potential drawbacks of traditional medications or surgeries.

Treatable Conditions

  • Acute pain: This is sudden and typically short-lived. This may arise from labour pain, postoperative pain, menstrual pain, tension headaches, and injuries.
  • Chronic pain: This persists over a long period of time. This may include conditions like arthritis pain, fibromyalgia, and backaches.
  • Neuropathic pain: It stems from damage or dysfunction of the nervous system. TENS can be beneficial for managing diabetic neuropathy, phantom pain, and sciatica.
  • Musculoskeletal pain: It stems from issues with muscles, bones, tendons, ligaments, and other structures. TENS is valuable for addressing knee osteoarthritis pain and joint pain.
  • Muscular discomfort: This arises from tension, strain, or overuse of muscles.

A small and large wing iTENS with refill gel pads

How a TENS Unit Works

A TENS unit works through various mechanisms. Foremost, it operates based on the pain gate mechanism. According to this, the electrical stimulation from TENS can activate non-painful nerve fibres. This can close the “gate” through which pain signals travel to the brain. This mechanism can effectively block the transmission of pain messages. As a result, it can reduce the perception of discomfort.

Furthermore, the use of TENS can trigger the production and release of endorphins. These are the natural chemicals of the body that act as natural painkillers. As the electrical pulses stimulate the nerves, endorphins are released. This produces a natural analgesic effect. Nevertheless, this mechanism can reduce the sensation of ailment and promote an overall sense of well-being.

In addition, TENS therapy promotes the modulation of blood flow in the affected area. The electric currents can cause vasodilation. This enhanced blood circulation can contribute to the reduction of inflammation. Additionally, it can deliver essential nutrients and oxygen to the body tissues. Hence, it aids in the healing process and contributes to providing relief from discomfort.

Frequencies and Intensities

The TENS device delivers electrical pulses at specific frequencies and intensities. The frequency refers to the number of electrical pulses delivered per second, measured in Hertz (Hz). Typically, this can be low and high frequencies. Lower frequencies, typically ranging from 1 to 10 Hz, are used to target chronic conditions. On the other hand, higher frequencies, typically ranging from 50 to 120 Hz, are employed to address acute conditions.

In addition to frequency, the TENS unit offers various intensity settings. This determines the strength of the electrical impulses. The intensity is usually adjusted by the user to a level that is perceptible but comfortable.

A woman using and manually operating TENS on her hand

How to Use a TENS Unit

To use a TENS unit, the individual should first ensure that the device is switched off before initiating the set-up process. Then, identify the specific area of the body experiencing discomfort. Prepare the skin over it and place the electrode pads accordingly. Adhering to the proper electrode placement is crucial in this step. Next, connect the electrodes to the machine using wires or to a smartphone via Bluetooth.

Afterwards, switch on the TENS device and begin adjusting the parameters. Users can customise the pulse rate, intensity, and duration. Additionally, some advanced TENS models have pre-set programs. Thus, select or choose the program that directly targets the specific condition. Nevertheless, it is vital to start with the lowest setting and gradually increase it to a comfortable level.

Once the parameters are adjusted, initiate the stimulation for pain relief. During the treatment session, monitor any sensations experienced. The duration of the treatment should be in line with the recommendations provided by health professionals or as indicated in the user manual. Upon completion of the treatment, switch off the TENS device and carefully remove the electrodes from the skin.

Pad Placement Guide

When placing the electrodes, it is essential to first identify the specific area of the body experiencing discomfort. Then, prepare the skin by cleaning and drying it. Once the skin is prepared, remove the protective backing of the electrodes and place the pads. The placement of pads may vary. For instance, when targeting back pain, the electrodes can be put on either side of the spine.

Additionally, when applying the pads, firmly press the pads to the skin to secure it. Also, keep an appropriate distance between the pads. Avoid placing the pads on the head, eyes, mouth, chest, throat, bony regions, and broken skin.


Overall, a TENS unit is a valuable tool for many individuals. It is an electronic device that sends electrical pulses to the body as a method of pain relief. Furthermore, TENS therapy provides several benefits. It is versatile, non-invasive, drug-free, customisable, portable, cost-effective, and provides targeted relief. Accordingly, TENS works by blocking pain signals, prompting the release of endorphins, and increasing blood flow. Also, the electrical currents can stream in different frequencies and intensities.

With such mechanisms, TENS can treat various conditions. This may include menstrual pain, backaches, diabetic neuropathy, osteoarthritis, and muscular discomfort. Moreover, using a TENS device is a straightforward process. One needs to locate the area of the body experiencing discomfort. Then, prepare the skin and place the electrode pads. Following the electrode placement guide is crucial in this step. Finally, turn the device on, adjust the settings, or choose a pre-set program.

Best Sellers

Shopping Cart
Your cart is emptyReturn to Shop
Calculate Shipping

We have detected you are from the United States

We ship to all locations within the United States.
Prices will be automatically converted into USD.

Would you like to add extra Gel Pads?

Would you like to add extra Gel Pads?

Would you like to add extra Gel Pads?


The item you’re adding to your cart doesn’t have any gel pads.

Note: iTENS wings should always be used with a gel pad.