The legs are sore and tired every day, mainly due to the following two reasons: first, muscle strain in the legs, generally manifested by long standing or frequent walking during the day, or even legs to do strenuous exercise, there will generally be muscle strain, which will lead to muscle soreness and tiredness. Second, lumbar spine diseases, such as lumbar spinal stenosis or lumbar spinal slippage, these two diseases may compress the nerve roots of the lower extremities bilaterally, resulting in numbness and weakness of the lower extremities and other symptoms, the same will also appear sore and tired feeling. If it is lumbar spinal stenosis, a typical manifestation is intermittent claudication, that is, walking for a period of time, there is weakness, soreness and swelling of both lower limbs, can not continue to walk, must sit down to rest to continue walking, this situation is called intermittent claudication, highly suspected of lumbar spinal stenosis.