1. Introduction: Pain is defined as an unpleasant sensory and emotional experience associated with actual or potential tissue damage, or described in terms of such damage. It is the most common reason for seeing a doctor in the United States. It is an important symptom in many medical conditions and can significantly interfere with a person's quality of life and overall functioning. Pain can be divided into physical or psychological pain depending on its cause. Physical pain can be divided into nociceptive pain and non-nociceptive pain depending on where it occurs. Nociceptive pain arises from the stimulation of specific pain receptors. These receptors can respond to heat, cold, vibration, stretch, and chemical stimuli released by damaged cells. While non-nociceptive pain originates in the peripheral and central nervous system (1). This diagram can help illustrate the classification of pain: Somatic pain is sensed by nerves located in the skin and deep tissues. These specialized nerves, called nociceptors, pick up sensations related to temperature, vibration, and swelling in the skin, joints, and muscles. Somatic pain characterized by sharp and well-localized pain, which can often be reproduced by touching or moving the affected area (1). Another type of nociceptive pain is visceral pain which is the pain felt when internal organs are damaged or injured. Specific receptors (nociceptors) for stretch, inflammation, and ischemia are responsive to receiving this type of pain. usually visceral pain characterized by poor localization and a sensation of deep pain, sometimes with cramps. It can produce referred pain(1). Neuropathic pain, which is a type of non-nociceptive pain, is caused by damage to ...... middle of paper ......4. ictoria, c. (2009). Phantom limb pain: a proprioceptive memory phenomenon?. 73, 555-558.5. Diers Met al. Imagined and executed mirror movements differentially activate the sensorimotor cortex in amputees with and without phantom limb pain. PAIN(2010),doi:10.1016/j.pain.2010.02.0206. Melita, j. (2007). The past, present and future. Central mechanisms in phantom limb perception, 54, 219-232.7. ramachandran, v. (1998). The perception of phantom limbs. 121, 1603-1630,8. flower, h. (1995). Phantom limb pain as a perceptual correlate of cortical reorganization after arm amputation. 6531, 482-484.9. loimer, g. (2008). Is mirror therapy all it's cracked up to be? current evidence and future directions. 138, 7-10.10. lorimer, g. (2007). Using visual illusion to reduce neuropathic pain in paraplegia. 294-298.