PAIN

pain is an uncomfortable feeling that tells you something may be wrong. it is an unpleasant physical sensation caused by injury or illness.  it can be steady, throbbing,  stabbing,  aching, pinching, or described in many other ways. it can be classified as either acute or chronic 

Acute pain may be mild and last just a moment. It can also be severe and last for weeks or up to 3 months. Acute pain has a distinct beginning and end. The cause of acute pain is known and a you heal, the pain will lessen and finally go. Acute pain is triggered in patients with surgery, injury, childbirth and acute illness. It is caused by damage to variety of tissues. Commonly injured tissues include skin, muscle, bone, tendons, ligaments  and visceral organs 

Chronic pain lasts for more than 6 months. Pain is considered chronic when it continues beyond the usual recovery period for an injury or illness. Chronic pain sometimes called persistent pain is often intractable as the cause of pain cannot be removed or treated and is resistant to most medical treatment. In many chronic pain state, repetitive,  persistent or recurrent peripheral nociceptive features can lead to neuroplasticity changes in the spinal cord and brain that result in a central sensitization and consequent chronic pain

Low back problem, arthritis,  cancer , shingles, migraine and fibromyalgia are the most common sources of chronic pain. Others include diabetic neuropathy,  phantom limb sensation and other neurological conditions