can anybody define pain

You can define it like some hospitals. Actually it's a rating system rather than an explanation. They go from a 1 to 10 scale, 1 being the least painful to 10, pain that is really bad. I feel that pain is discomfort. Something that your body goes through that makes you say: "that doesn't feel good."

it is a life of constant suffering waiting for the next pain free day to come in the next week or month....a life restricted to day to day activity not sure what you can handle and giving up most of your dreams. That to me is pain.

Pain may occur in any part of the body where sensory nerves are distributed, and it is always due to some kind of stimulation of them. The sensation is generally referred to the peripheral end of the nerve

Definition and classification Pain is a universal human experience. The International Association for the Study of Pain (IASP) defines pain as "an unpleasant sensory and emotional experience associated with actual or potential tissue damage or described in terms of such damage." Pain may be a symptom of an underlying disease or disorder, or a disorder in its own right. At the same time that pain is a universal experience, however, it is also a complex one. While the physical sensations involved in pain may be constant throughout history, the ways in which humans express and treat pain are shaped by their respective cultures and societies. Since the 1980s, research in the neurobiology of pain has been accompanied by studies of the psychological and sociocultural factors that influence people's experience of pain, their use of health care systems, and their compliance with various treatments for pain. As of 2003, the World Health Organization (WHO) emphasizes the importance of an interdisciplinary approach to pain treatment that takes this complexity into account Types of pain Pain can be classified as either acute or chronic. Acute pain is a direct biological response to disease, inflammation, or tissue damage, and usually lasts less than one month. It may be either continuous or recurrent (e.g., sickle cell disease). Acute pain serves the long-term wellbeing of humans and the higher animals by alerting them to an injury or condition that needs treatment. In humans, acute pain is often accompanied by anxiety and emotional distress; however, its cause can usually be successfully diagnosed and treated. Some researchers use the term "eudynia" to refer to acute pain. How the body feels pain A person begins to feel pain when nociceptors in the skin, muscles, or internal organs detect pressure, inflammation, a toxic substance, or another harmful stimulus. The pain message travels along peripheral nerve fibers in the form of electrical impulses until it reaches the spinal cord. At this point, the pain message is filtered by specialized nerve cells that act as gatekeepers. Depending on the cause and severity of the pain, the nerve cells in the spinal cord may either activate motor nerves, which govern the ability to move away from the painful stimulus; block out the painful message; or release chemicals that increase or lower the strength of the original pain message on its way to the brain. The part of the spinal cord that receives and "processes" the pain messages from the peripheral nerves is known as the dorsal horn. Source: http://www.answers.com/pain?initiator=IE7:SearchBox

i will try to define it ... "JAKHM SIRF PAIKAR PE HI NAHI HOTE , JAKHMO SE TAPKE LAHU KOI JAROORI NAHI" i.e. wounds are not found only on body its not necessary that every wound bleeds ....