Pain 1

Pain

What is Pain?

Pain is a critical signal from the body indicating injury or distress. Whether you experience acute or chronic pain, understanding its nature is the first step towards effective treatment. This FAQ page, from a physiotherapist’s perspective, will explain the types, causes, and treatments for various pain conditions.

what is pain
What Is Pain? Pain Explained

Why does pain occur?

Pain occurs when nociceptors, specialised nerve cells, detect harmful stimuli such as heat, pressure, or chemical changes. These receptors trigger a series of signals through nerve fibres to the brain, where they are interpreted as pain. This response serves as an alert system, helping us avoid further injury.

How is pain transmitted in the body?

The transmission of pain signals begins with receptor nerve cells at the site of injury. These signals travel via nerve fibres (A-beta, A-delta, and C fibres) through the spinal cord to the brain. The speed and type of nerve fibres involved influence the nature of pain—whether sharp, acute, or chronic.

What is the difference between acute and chronic pain?

Acute pain typically occurs suddenly due to injury or illness and resolves as the body heals. Chronic pain, however, lasts longer than three months, often persisting even after the original injury or illness has healed. Chronic pain can involve complex interactions between the nervous system and psychological factors.

More info: Chronic Pain Explained

How can physiotherapy help in managing pain?

Physiotherapy uses a combination of manual therapy, tailored exercises, and education to manage pain. Techniques like joint mobilisation, massage, and specific exercise programs improve muscle strength and flexibility, reducing pain and preventing further injuries.

Physiotherapy generally focuses on non-invasive, drug-free methods for managing pain and improving function. However, in some cases, pharmacological intervention, such as pain relievers or anti-inflammatory medications, may be recommended alongside physiotherapy. This is typically decided by a doctor or pharmacist and is used to manage acute or chronic pain, allowing patients to engage more effectively in physiotherapy exercises. Common medications may include NSAIDs (non-steroidal anti-inflammatory drugs), muscle relaxants, or nerve pain medications.

Learn more about physiotherapy treatments for pain

What is nerve pain, and how is it treated?

Nerve pain (neuropathic pain) is caused by damage or irritation to the nerves and can feel like shooting, burning, or stabbing sensations. Physiotherapy can help manage nerve pain through exercises, manual therapy, and education on nerve mobilisation techniques.

Discover more about nerve pain management

What role does the brain play in pain perception?

The brain plays a significant role in interpreting pain signals. It processes sensory input from nerve cells and can even modulate the intensity of pain based on psychological and emotional factors, which is why pain can feel worse under stress or anxiety.

Can stress or anxiety worsen physical pain?

Yes, stress and anxiety can significantly impact the perception of pain. When stressed, the body releases hormones like cortisol, which can heighten the sensitivity to pain. Additionally, anxiety can lead to muscle tension, which may aggravate existing pain conditions. Managing stress through relaxation techniques, exercise, and cognitive behavioural therapy (CBT) can help reduce the impact of stress on pain.

What can I do at home to manage pain?

Home-based strategies to manage pain include applying ice or heat, engaging in gentle exercise, and practising relaxation techniques such as deep breathing or meditation. Physiotherapists can provide personalised home exercise programs to improve mobility and reduce pain.

Conclusion

Pain, whether acute or chronic, impacts every aspect of life. With tailored physiotherapy techniques such as manual therapy, exercise, and education, pain can be managed effectively. Seek a doctor or physiotherapist's guidance for a personalised pain management plan.

Related Articles

  1. Chronic Pain – Discover effective physiotherapy treatments for chronic pain.
  2. Nerve Pain – Learn about the causes of nerve pain and how to manage it.
  3. Post-Exercise Muscle Soreness – Understand why your muscles hurt after exercise and how to prevent it.
  4. Pain Management – Explore physiotherapy techniques for managing various types of pain.
  5. Spinal Pain – Learn about spinal pain causes and treatment options.
  6. Back Pain Relief – Discover effective ways to alleviate back pain.
  7. Joint Pain – Find out how physiotherapy can help with joint pain.
  8. Manual Therapy – Learn about hands-on techniques to relieve pain.
  9. Exercise for Pain Relief – Find out how specific exercises can manage chronic pain.
  10. Massage Therapy – Learn how massage therapy can alleviate muscle and joint pain.
  11. Understanding Chronic Pain: Causes and Treatments – Discusses the complexities of chronic pain and its management options.
  12. Nerve Pain Relief: Best Practices – Offers insights into managing nerve pain with both medication and physiotherapy techniques.
  13. Physiotherapy and Pain Management – Explains the role of physiotherapy in addressing both acute and chronic pain.

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What is a TENS Machine?

What is a TENS machine for pain relief?

A Tens Machine Sends Gentle Electrical Pulses Through Pads On Your Skin.

A TENS machine (transcutaneous electrical nerve stimulation) is a small, battery-powered device used for short-term pain relief. It connects to adhesive pads (electrodes) that you place on healthy skin near a sore area. The machine then sends controlled electrical pulses through these pads.

For a fuller explanation of how these devices work, see our article on TENS machine pain relief.

These pulses can reduce some of the pain messages travelling to your brain and may help your body release natural pain-relieving chemicals. A TENS machine does not fix the underlying cause of pain, but it can make it easier to move, exercise and cope between physiotherapy sessions.

For a deeper guide to choosing and using these devices, see our main page: TENS machine guide and buying tips.

What Does a TENS Machine Actually Do?

In simple terms, a TENS machine:

  • Sends small, safe electrical impulses through the skin.
  • Can “turn down” some pain signals reaching the brain.
  • May trigger natural pain-relieving chemicals such as endorphins.
  • Provides modest, short-term pain relief for some people.

Physiotherapists most often suggest TENS as part of a broader plan for problems such as back pain, neck pain, arthritis, some nerve pain conditions and selected post-operative pain.

Research continues to support TENS for short-term pain relief in selected conditions. For example, see this 2022 systematic review published in BMJ Open.

TENS vs EMS – Are They the Same?

No. A TENS machine mainly targets nerves for pain relief. An EMS machine (electrical muscle stimulation) is designed to make muscles contract for strengthening or muscle activation. If you are unsure which device suits your goals, see our page on EMS machines and how they differ from TENS.

Where to Learn More

Shop physiotherapist-recommended TENS machines

IMPORTANT

TENS and EMS machines are medical devices. Always read the label and the instruction manual.
A TENS machine may provide modest short-term pain relief. Consult your doctor or physiotherapist before use and if symptoms persist. Use only as directed.

Find the right TENS machine for your needs

Quick TENS Machine FAQs

  1. What is a TENS machine?
    A TENS machine is a small device that sends low-voltage electrical pulses through pads on your skin to help reduce pain signals.
  2. What can a TENS machine help with?
    It is commonly used for short-term relief of back and neck pain, arthritis, some nerve pain conditions and selected post-operative pain, alongside physiotherapy.
  3. Does a TENS machine cure my pain?
    No. It helps manage symptoms. The underlying cause still needs assessment, exercise and treatment from a health professional.
  4. Is a TENS machine safe?
    TENS is usually safe when used on healthy skin and in safe areas. People with pacemakers, implanted defibrillators or certain medical conditions should seek medical advice before use.

Related TENS Resources

View our full TENS machine range

References

Johnson MI et al. Efficacy and safety of TENS for acute and chronic pain. BMJ Open. 2022.
Paley CA et al. Does TENS reduce pain intensity? Medicina. 2021.

Healthdirect Australia – TENS overview.

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