Rarely tumors and arteriovenous malformations can cause this problem. This is often due to an abnormal position of a blood vessel compressing this nerve. Face PainĪ condition called Trigeminal Neuralgia is caused by pressure on the Vth Cranial nerve next to the brainstem. Headaches can be caused by muscle tension, migraine, neck problems (cervical disc prolapses) and less commonly by strokes, brain tumors and head injury. Pain Pain initiated or caused by a primary lesion or dysfunction in the peripheral nervous system. Pain Pain initiated or caused by a primary lesion or dysfunction or transitory perturbation in the peripheral nervous system. ParesthesiaĪn abnormal sensation, whether spontaneous or evoked. The greatest level of pain which a subject is prepared to tolerate. Noxious StimulusĪ noxious stimulus is one which is damaging to normal tissues. NociceptorĪ receptor preferentially sensitive to a noxious stimulus or to a stimulus which would become noxious if prolonged. NeuropathyĪ disturbance of function or pathological change in a nerve: in one nerve, mononeuropathy in several nerves, mononeuropathy multiplex if diffuse and bilateral, polyneuropathy. Pain initiated or caused by a primary lesion or dysfunction in the nervous system. Pain in the distribution of a nerve or nerves. Hypoesthesiaĭecreased sensitivity to stimulation, excluding the special senses. Hypoalgesiaĭiminished pain in response to a normally painful stimulus. HyperpathiaĪ painful syndrome characterized by an abnormally painful reaction to a stimulus, especially a repetitive stimulus, as well as an increased threshold. Hyperesthesia Increased sensitivity to stimulation, excluding the special senses. HyperalgesiaĪn increased response to a stimulus which is normally painful. DysesthesiaĪn unpleasant abnormal sensation, whether spontaneous or evoked. Pain initiated or caused by a primary lesion or dysfunction in the central nervous system. CausalgiaĪ syndrome of sustained burning pain, allodynia, and hyperpathia after a traumatic nerve lesion, often combined with vasomotor and sudomotor dysfunction and later trophic changes. Pain in an area or region which is anesthetic. AnalgesiaĪbsence of pain in response to stimulation which would normally be painful. Pain due to a stimulus which does not normally provoke pain. Neuropathic pain occurs in the absence of detectable ongoing tissue damage. Neuropathic pain is caused by nerve damage. Nociceptive pain is linked with an external stimulus. Chronic pain can be either nociceptive or neuropathic. The IASP (International Association for the Study of Pain) defines pain as An unpleasant sensory and emotional experience associated with actual or potential tissue damage, or described in terms of such damage.Ĭhronic Pain is defined as pain that persists for more than 3 months.
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