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It is located in the pelvis, and travels down at the front of the leg. [3] The nerve has several branches given its origin from the lumbar spine, down the pelvis and further into the lower spine. [3] Anatomically, it is formed by the dorsal division of the ventral rami of spinal nerves L2-L4, specifically the posterior divisions of the lumbar ...
Examples of paresthesias (abnormal sensations but not unpleasant) and dysthesias (abnormal sensations that are unpleasant) are burning, tingling, numbness, stinging, hypersensitivity, and itching. The symptom intensity can be mild to severe in a way that limits function due to pain. [5] Activity and position can affect the symptoms.
Nerve compression syndrome, or compression neuropathy, or nerve entrapment syndrome, is a medical condition caused by chronic, direct pressure on a peripheral nerve. [1] It is known colloquially as a trapped nerve, though this may also refer to nerve root compression (by a herniated disc, for example).
Paresthesias are usually painless and can occur anywhere on the body, but most commonly occur in the arms and legs. [1] The most familiar kind of paresthesia is the sensation known as "pins and needles" after having a limb "fall asleep". A less well-known and uncommon paresthesia is formication, the sensation of insects crawling on the skin.
Peripheral neuropathy may be classified according to the number and distribution of nerves affected (mononeuropathy, mononeuritis multiplex, or polyneuropathy), the type of nerve fiber predominantly affected (motor, sensory, autonomic), or the process affecting the nerves; e.g., inflammation (), compression (compression neuropathy), chemotherapy (chemotherapy-induced peripheral neuropathy).
While some of these behaviors, particularly cravings, were once thought of exclusively as migraine triggers, "there's a movement to shift away from thinking about triggers," Singh explains.
Symptoms may include pain and numbness in the buttocks and down the leg. [2] [3] Often symptoms are worsened with sitting or running. [3] Causes may include trauma to the gluteal muscle, spasms of the piriformis muscle, anatomical variation, or an overuse injury. [2] Few cases in athletics, however, have been described. [2]
Saturday night palsy from falling asleep with one's arm hanging over the arm rest of a chair or edge of bed, compressing the radial nerve. [12] Saturnine palsy from lead poisoning [13] Squash palsy, from traction forces associated with the sport squash, happens to squash players during periods between matches. [14]