Sciatica caused by sleeping, generally and sleep before exertion, muscle tension or cold, fatigue or too much exercise is caused by local nerve compression, muscle adhesions, inflammation, including lumbar spine lesions to stimulate the nerve root of the main reason, generally a relatively short period of time will not be too serious. According to the pain situation, distinguish because of exertion or other lesions, such as old lumbar spondylosis, disc herniation, etc. due to excessive activity aggravate the condition caused by sciatica, distinguish after bed rest, observe the effect of treatment, such as persistent non-relief need to go to the regular hospital to check the symptomatic treatment.