Why does PAIN occur? Understand the Mechanism of Pain

Pain is an unpleasant and distressing physical sensation caused by disease or injury, which induces hurt and anxiety in those suffering from it.
There are many different manifestations of pain, ranging from short term (acute pain) to long term (chronic pain). Other classifications include pain in the internal organs (visceral pain), injured tissue (inflammatory pain), nerves (neuropathic pain), etc.

The reason for the occurrence of pain depends on the cause and kind of pain being experienced. In most cases, pain acts as a warning sign that the body has been afflicted by a disorder of some sort, which may have arisen due to internal sickness or external wounding. Acute pains are generally cured on their own through rest or simple medication. Chronic pains, on the other hand, are more complicated in nature and the treatment requires more elaborate diagnosis.

The mechanism of pain

Pain is an extremely personal and subjective experience and affects each individual to varying degrees. The pain signals, which can arise in any part of the body, travel through the spinal cord to the brain along thousands of specialized nerves and nerve fibres. In the brain, it is processed in the centres associated with anxiety, emotions, memory, appetite, etc. Signals and pain inputs are then returned from the brain to the spinal cord, which may heighten or diminish pain.

In some cases, pain may also be induced by damage to the brain and spinal cord, which happens after a stroke.
A constant barrage of pain signals may cause the cells at the end of nerve fibres to become over-sensitized. This is known as 'wind-up' and is one of the most common causes of chronic pain that occurs even though the root of the problem has been identified and treated.

The causes and effects of pain differ from case to case depending on the signals received by the brain and its interpretation. It affects the individual's day to day activities and if persistent, can also have a harmful impact on mental health and psychosis. Pain is always handled, diagnosed and treated differently in all patients by drawing out the best possible solution to the problem.





Why does PAIN occur? Understand the Mechanism of Pain

Pain is unpleasant suffering caused by injury or illness. Back pain may be sudden/constant, dull, severe or not responding to short rest and medication. Constant pain in back in any region of spine for more than few days to weeks needs intervention.

Pain which is intense especially at night requires urgent visit to a specialist.

Sudden onset of pain in back with or without injury needs urgent attention.

Back pain with difficulty in walking, pain while getting up from position of comfort, pain during change of posture or pain after prolonged sitting (for work) can lead to serious permanent damage, if left untreated.

Pain which travels to one or both legs may be due to pressure on the nerve/s and if left untreated for long can lead to permanent weakness or damage.

Pain associated with numbness, tingling or weakness in legs, especially below the knees, commonly called Sciatica, needs to be investigated. Various spinal ailments can lead to weakness in one or two limbs or all four limbs. There may be associated or isolated numbness (loss of sensation to touch, pain or temperature) without back pain.

Numbness, tingling or weakness may be the only symptoms without any complaint or without history of back pain.

Problems related to bladder control which may be difficulty to control, hesitancy in passing or dribbling of urine. There may be associated constipation. Loss of bowel/bladder control is caused by pressure on spinal cord &/or nerves which may be due to injury, infection, disc prolapse or tumor.

Sudden swelling and redness in back usually happens after an injury or accident but sometimes are signs of underlying severe illness.

Loss of normal shape/curvatures of spine can present with or without pain. It can lead to forward, sideways or rarely backward bending.

Unintentional weight loss, loss of appetite, evening rise of fever or disturbed sleep with associated back pain/weakness/numbness needs visit to a specialist.

When Should You See Your Doctor in Back Pain?

The causes and symptoms of chronic lower back pain

Lower back pain is characterized by a feeling of pain around the lumbar region (curve of the back connecting the upper back and glutes- muscles in the buttock that are responsible for thigh movement) caused by muscle or ligament injury. The spinal area is most likely to be affected by lower pain as it may impair routine activities like walking and standing. Any lower back pain that lasts for more than ninety days can be considered as chronic.

Causes of lower back pain

There are plenty of causes for lower back pain. Anything that exposes the lumbar area of the spine to a level of stress beyond its capacity can cause lower back pain. These causes are-

1. Disorders of the discs

The spinal area in the lower back comprises of small bones called the vertebra, which are connected to each other by pieces of cartilage known as discs. These discs act as shock absorbers, and when exposed to excessive shock can cause the disc to bulge, resulting in herniated discs. Wear and tear of the discs can also occur.

2. Spinal stenosis

Spinal stenosis occurs when the area around the spine becomes narrow. It may affect the nerves surrounding the lower back, resulting in pain.

3. Wear and tear of the joints and ligaments

Normal wear and tear of the joints and ligaments cause difficulties in holding the spine in its proper position and this progresses with age. This may cause a vertebra to slide over another and affect the nerve endings, giving rise to pain.

Symptoms of lower back pain

The symptoms of lower back pain are usually a dull or excruciating pain in the lower back. It can also affect other parts of the body such as the hips and the legs. In case of severe pain, simple activities like walking, bending and sitting will be impaired.



The Causes and Symptoms of Chronic Lower Back Pain

Pain causes a lot of discomfort in the body no matter whether the pain is in the back, legs or in the head. Almost all people experience lower-back pain at some point in their lives, which can be extremely painful and can cause considerable annoyance. The first medical specialty that comes to mind for relief of lower-back pain is Orthopedics. The other two specialists that play a vital role in treating lower-back pain are the neurosurgeons and the physiatrists.

Pain in the Back
It is very difficult for the body to source the pain when it is deep and this pain could be due to infection, disease or injuries in the back, stomach and heart. It is even possible that the pain radiates to different places in the body. Often back pain is accompanied by body changes like redness, fever, neurological problems, heat, and changes in body functions and for that diagnosis of the back pain may be very severe. Patients suffering from lower-back pain and with symptoms that comprise of weakness in the foot or other symptoms of a neurologic insufficiency must definitely see a neurosurgeon.

Back pain that occurs due to reversible problems is known to vanish in a few hours or in a day. However, if it continues longer and is accompanied by body changes, then there are chances that the condition can become worse. Visiting a doctor becomes a must for back pain if any of such characteristics are witnessed. It is always better to get evaluated by a physician.

When to Consult a Doctor Immediately

    Back pain that is followed by a shock like a car accident.
    The pain in the back worsens and is constant
    Back pain continues for more than 4-6 weeks
    The pain does not improve even after taking typical remedies such as taking pain relievers or after resting.
    Severe pain in the back in the night and that is alleviated by rest
    The back pain is accompanied by abdominal pain
    Numbness in the upper thighs, buttocks, groin or in the genital area
    Weakness or tingling sensation in the arm or legs

Role of a Neurosurgeon
The neurosurgeon provides non-surgical as well surgical care depending upon the nature of the illness or the injury, and he does not just operate. The neurosurgeons are experts and offer treatment to patients suffering from any injury or disease in the spine, brain or peripheral nerves that deal with arms, hands, feet and legs. But there are many other neurosurgeons that confine their practice to treating back pain.

Lower Back Pain - 8 Signs When You Must Visit Your Doctor

Back pain is a common source of pain and can be acute, sub-acute or chronic in nature. Back pain is classified along the segments of the spine and can be divided into neck pain, middle back pain, lower back pain and coccydynia or tail bone pain. Back pain can be quite troublesome as it disables a person to move about freely due to constant ache.

Here are some procedures for the treatment of back pain.

    Give your back some rest: Most people who get back pain become obsessed with it and end up getting MRI scans and x-rays done. Some even take injections and other such measures without recognizing the intensity of the pain. It is advised not to rush into the matter immediately and the simplest way to cure the pain is by resting. 90% of pains in the back resolve by themselves in 6 weeks and so you must give your back a break instead of taking medical actions and let time do the healing.
    Pills: While you let time treat your back pain, sometimes the pain increases and gives you a bad time. In this case, you can take anti-inflammatory medicinal pills such as ibuprofen or naproxen. These pills will help you ease the pain. However, using such pills for a continued period of time causes side effects such as gastrointestinal disorders. Hence, you should not take them for more than ten days at a stretch.
    Hot and cold compress: Apply a bag of frozen peas or an ice pack to the affected area for 48 hours after the pain appears. Every session should be about 20 minutes, and you should take more than two sessions each day. After two days, repeat the same procedure using a heat pad instead of ice. The cooling procedure shuts down your blood capillaries and reduces the flow of blood to that area. The swelling is eased as a result. The heating, on the other hand, loosens tight muscles and increases the blood circulation, providing extra oxygen.
    Change your mattress: People who sleep on firm mattresses and cushions on their beds are at a higher risk of having a back pain. According to studies, it has been observed that people sleeping on medium-firm mattresses have healthier backs. In case your mattress in sagging or is over 8 years old, you should replace it.
    Acupuncture: When your back pain is very severe, you can resort to acupuncture, which provides efficient pain relief. The procedure changes the way your nerves react and reduces inflammation.

Back pain arises from various reasons and should always be taken care of. Unattended back pain worsens and makes the affected person suffer.

Suffering From Lower Back Pain - 5 Ways You Can Treat it

Pain related sleep disruption has affected a large number of people around the globe. Statistics has it that, in India, about 25% of the population suffers from pain-related sleep deprivation. Studies call it  the vicious cycle of pain and sleep  as pain affects your ability to sleep and lack of sleep makes the pain even worse.

Back pain and arthritis are examples of some common pain-related medical disorders. People with these types of chronic pains have reported persistent sleeplessness or have had immense trouble falling asleep.

The following are the primary sleep disorders associated with chronic pain:

Insomnia: It is a medical condition that is characterized by an inability to fall asleep no matter how physically exhausted you are. Insomnia can be acute (lasting for one night to a week) or chronic (that lasts for more than 3 weeks).
Hypersomnia: It is a condition wherein you tend to sleep excessively; in this condition, you will have trouble being awake throughout the day or can fall asleep at any point of time.
Sleep Apnoea: This is a sleep disorder wherein breathing pauses and resumes repeatedly. Risk factors include obesity, age and gender; it is more commonly observed in men. This condition can be chronic with symptoms such as snoring loudly or feeling very tired even after one has had a night s sleep.
Restless leg syndrome: It is a sleep disorder wherein you continuously move your legs while sleeping. However, this condition can also cause you to move your legs even if you aren t sleeping.
Some of the causes of sleep disorders due to chronic pain are:

Pain
Worry and anxiety
Sweating at night
Depression and other mental disorders
Treatment

A pain and sleep disorder should be simultaneous as both the components of it, pain and sleep, are interrelated. Some of the ways people with chronic pain can still have a good night s sleep are:

Limiting caffeine intake
Abstaining from alcohol and smoking, as these disrupt the sleep cycles, thus aggravating the existing pain.
Practicing meditation and other relaxation techniques
Pain killers or sleeping pills can be administered, but only with the doctor s advice.
Hot water fomentation over painful area during night, for better sleep.

Back Pain and Bad Sleep

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