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

Oh my aching Heel!! The combination of foot and ankle consists of 26 bones, 33 joints and an excess of 100 tendons. The longest bone present in the foot is the heel. Over usage or injury to the heel would lead you to experience pain in the heels. The severity of the heal pain can range from mild to excruciating. 

The cause behind heel pain is typically associated with excess usage of the heel bone. Straining of your heel occurs if you excessively pound your feet on surfaces that are hard, or you are overweight or even if you wear shoes that do not fit your feet properly. These strains cause irritation in the muscles, bones or tendons that are present in the heels. Some of the other common causes include: 

Heel Spurs: Development of heel spurs occurs due to the continuous stretching of the lining, which covers the heel. Upon continuous stretching, pieces of the lining tend to break off. Development of heel spurs is common in athletes who frequently jog or run. People who are obese also tend to experience pain due to heel spurs. 
Plantar Fasciitis: Development of Plantar Fasciitis occurs due to the inflammation of the tendinous tissue that connects the heel to the ball of the foot. Development of Plantar Fasciitis is common in athletes who frequently jog or run as well as people who wear shoes that don?t fit the feet properly. It may occasionally be associated with Vitamin B12 deficiency and raised uric acid in blood 
Achilles Tendinitis: This is the inflammation of the Achilles tendon. Achilles Tendinitis occurs commonly in people who have active lifestyles, such as people who are joggers, runners or even dancers. 
Treatment-

Physical therapy, medication or alternative treatments can be used to treat this form of pain. Medications for heel pain can only be in the form of anti-inflammatory drugs. Although these oral medications cannot significantly relieve heel pain, some injections containing substances such as corticosteroids, as well as Arthrocentesis (removal of fluid present in joints using hollow needles) might be able to provide relief. Recently PRP (Platelet Rich Plasma) injection have been found very useful in treating recalcitrant Plantar fasciitis and heel pains. 

Common practices that can be used to relieve discomfort include: 

Application of ice to the heel for a duration of 15 minutes daily. 
Utilize over-the-counter pain medications .
Have adequate amounts of rest .
Wear shoes that fit properly .
Walking on tip toes to stretch the plantar fascia helps to relieve heel pain.

Heel Pain: Know its Causes and Treatments

The toes and heels are the most load bearing components within your feet which take most of the weight when walking, running, exercising or even standing up. The heels are an especially vulnerable part of the body which can become painful either due to injuries or excessive stress put on it. Pain in your heels can also be a sign of other problems in your body.

Causes for heel pain:

1. Sprains or straining the leg: Exercising is one of the most common culprits behind heel damage. Wearing the wrong shoes over prolonged periods, which can cause your balance to be shifted and will lead you to put strain on your heels and cause pain. Falling or spraining during exercising or training can also cause heel pain.

2. Fractures: Stress or hairline fractures can occur even without impacts or trauma and also cause pain. It will slowly build up over time. In such cases, you should immediately consult a doctor and take remedial action.

3. Achilles tendon: A common cause for heel pain, the Achilles tendon connects the calf muscle to the heel. If this is torn or damaged, it can cause pain in your heel.

4. Arthritis: The deposition of uric acid crystals in parts of your body may result in arthritis; this is a fairly common cause for heel pain as well.

Treatments available

1. Change in shoes: Shoes play a major role in the development of heel pain. You will either need to change the shoes or adjust the heels to ensure that they are at an equal and comfortable height and keep your posture natural and balanced.

2. Foot supports: There are specialized heel supports and wedges, which you can wear with the footwear. These supports help redistribute weight from the problem areas and uniformly distribute it among the other parts of the foot. Heel cups are also another form of supports you could try.

3. Pain relief medications: Sometimes aspirin or ibuprofen may be required to numb and dull the pain, if getting through the day becomes difficult or you are in the middle of work.

4. Resting: Sometimes resting is the only medication you can take to relieve the pain as it can only subside once the underlying conditions are corrected.

5. Ice packs: Cold compress and cold therapy would definitely help in numbing the area and providing temporary pain relief.

It is however, advisable to visit the doctor if the pain persists and take specialized medical care in more complicated cases wherein the pain is prolonged.

Heel Pain its Causes and Treatments

In recent times, there has been an upsurge in the instances of leg pain. People from all age groups, irrespective of their gender, are being affected. Needless to say, this painful and uncomfortable condition throws life in jeopardy and adversely affects and interfers with a person's daily activities. While the pain can be in both the legs, many people also suffer from severe radiating pain in one leg.

What causes radiating pain in one leg?
More than often, this kind of pain is triggered by nerve problem or disorder. If you experience a shooting pain that originates in the lower back and gradually radiates down to one of the legs (from the buttocks to the back of the leg), chances are you are experiencing sciatica.

In sciatica, the nerve affected is the sciatic nerve. The sciatic nerves originate from the spinal nerves L4 to S3. From the lower back, the nerves (two sciatic nerves) extend downwards to the back of each leg. The sciatic nerves further divide into a tibial and peroneal nerve. These nerves are mostly responsible for the sensation and motor functions of the legs and the feet.

Sciatica can be an outcome of
The discs present between the vertebrae provides them with a much-needed cushion, preventing injury or damage. In case, of a degenerative disorder of the disc, the protective cushion gets affected resulting in the pain and associated symptoms.

Lumbar spinal stenosis: A medical condition where the spinal canal in the lumbar area narrows down, exerting pressure on the sciatic nerve.
Spondylolisthesis or a slip disc: The condition mostly affects the lumbar area (base of the spine) whereby there is slippage of one of the bones over the adjacent bone (the bone located just below it).
A muscle pull in the buttocks can also trigger sciatica and many times, a pregnant woman may also experience sciatica. The sciatic pain can be:

Chronic sciatic pain: As the name suggests, chronic sciatic pain is intense and more severe, with the symptoms persisting for a longer time (more than three months). Arthritis, severe nerve damage or scarring (tissues) are often responsible for chronic sciatic pain.
Acute sciatic pain: An injury to the nerves, muscles, spinal joints or discs can cause the pain. However, as instantly as the pain starts, the condition improves within days (at times weeks).
In addition to the radiating pain, there may be other symptoms associated with sciatica such as

Difficulting in leg or foot movement.
Weakness
Sciatica can also trigger a pain in the back of the leg which aggravates when a person is in a sitting position
Hip pain
Numbness, and often a tingling or burning sensation radiating down the leg
In some people, sciatica can cause a shooting pain (which worsens when a person tries to stand up)
The pain (in some cases) can extend to the foot and toes
There can be many underlying factors responsible for the pain radiating to one leg. Neglecting the condition will only worsen the situation further. 

Radiating Pain In One Leg - What Can Be The Reason Behind It?

Excessive and persistent pain in the feet as well as the ankle joints could point at the existence of a condition known as flat foot pain. This happens due to the difference between a normal foot and a flat foot. While a normal foot will have an upward arch under the foot, right in the middle, the flat foot does not have such a support. This arch is usually formed by the tendons and ligaments that help in rendering support to the foot as well as stabilising the rest of the body. When these tendons and ligaments become weak, the arch begins to diminish before finally disappearing, which leaves the patient with a flat foot. This can be a painful condition. Let us look at the ways in which it may be cured.

Foot Wear: When you are suffering from this condition, it is important to wear comfortable and supportive foot wear like shoes, sandals and slippers which can support the arch and help in giving stability to the rest of the body. Besides looking for shoes that will provide the right amount of comfort, one can also use additional support like insoles that will help in giving comfort while you are walking, standing or running.
Orthotics: These are tools that can be recommended by your doctor in order to help in minimising the pressure that one feels in the foot. The orthotics usually distributes this pressure by giving much needed additional support to the arch of the foot. These tools also help in realigning the foot s ankle with its bones as well as the joints, which can help in successfully treating this condition to a great extent. They are usually customised as per your exact foot shape and size, as well as the problem you are facing, so that you have plenty of support when you are using your feet for varied activities.
Arch inserts and wraps: If your normal shoes are lacking the arch support that you require for flat feet, then you can also invest in arch inserts and wraps which will reduce the pain and prevent it from reoccurring. Also, these will help you to remain standing or walking for longer periods of time, as they add that extra bit of support to your feet for normal functioning.
Surgery: If the various non surgical treatments do not help you over a period of a few months, then it may be time to speak with your podiatrist or orthopaedic specialist so that you can go in for a surgery that will fix this problem. This kind of surgery will help in stabilising the feet and ankle bones by applying corrective foot support.

Flat Foot Pain - Ways It Can Be Treated!

Shoulder pain can be a persistent dull and nagging sensation in the upper arm or shoulder area. It can be easily differentiated from neck pain as it is related to the movement of shoulders i.e. it will increase and decrease with shoulder movements, especially overhead activities. The other signs to identify shoulder pain is if your shoulder movements are reduced.

If you find it difficult to scratch / wash your back, comb your hair or reach your back pocket, it clearly shows you are suffering from shoulder pain. Shoulder pain can happen due to various reasons, it varies from person to person depending on the activities he/she is involved in, for e.g. sports, manual job etc. It can be a single major injury or multiple small injuries due to repetitive usage patterns. Also, degenerative changes in various parts of the shoulder can lead to shoulder pain.

In case of middle to old age, injuries that can cause shoulder pain are:

    Biceps Tendonitis
    Acromio-clavicular Joint arthritis
    Scapular Dyskinesia
    Trapezitis
    Suprascapular nerve entrapment In young age, injury due to sports or gym activity can cause shoulder pain
    Superior labral anterior/posterior (SLAP tear)lesion

Also, traumatic or repeated dislocations of shoulder can cause shoulder pain due to:

    Bankart lesion

Diagnose Shoulder Pain

Shoulder pain can be diagnosed only after thorough history taking and clinical examination. However, some imaging studies can be very helpful like:

    X-rays: Through an x-ray one can view the shoulder in many different views.
    Ultrasound: With an ultrasound, you can also check the damaged caused to the tendons and muscles of the shoulder but the quality of reporting depends upon the expertise of the doctor.
    MRI: MRI gives a clear picture of the shoulder as it shows everything related to a shoulder joint that is joints, vessels, tendons and muscles that too from different angles.
    Diagnostic Arthroscopy: A surgical procedure often used by orthopaedic surgeons to diagnose and treat issues inside a joint. Arthroscopy has the big advantage that one can use it to diagnose as well as treat at the same time.

Treatment for Various Types of Shoulder Pain

    For Shoulder Impingement or Rotator Cuff tear: Give rest to the shoulder for a few days only Dedicated Physiotherapy Protocol Bursal injections If these fail then, (Surgery)Arthroscopic sub-acromial decompression If Cuff tear is found, then one can go for Arthroscopic/Mini-open repair
    Labral Lesions: For anterior Labral lesions (Bankart's) following anterior shoulder dislocation then surgery in the form of Arthroscopic Bankart's repair is the only option to reduce risk of recurrence and degeneration.

SLAP Lesions

    Pain relief and physiotherapy as first step If this fails then following surgical options are available
    Arthroscopic debridement or repair of labrum
    Biceps tenotomy or tenodesis

Arthritis

In this case, the joint is already destroyed and has to be resurfaced for pain relief and to maintain ROM. If Rotator cuff muscles are working, then Shoulder resurfacing hemiarthroplasty (preferred in young people), that has a life of 10 to 15 years, Total shoulder replacement (preferred in middle aged to old people) has a life of 10 to 15 years. But, if rotator cuff muscle are not working then Reverse Geometry Shoulder replacement is recommended, that has a life of 10 years.

It is always advisable to get yourself diagnosed properly in case of shoulder pain as management changes depending on clinical situations. Neglecting shoulder conditions can lead to bigger problems later on.

Always remember 'a stitch in time saves nine'

Shoulder Pain: Causes, Diagnoses & Treatment

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