Symptoms of bilateral nerve root compression in lumbar 4 and 5 may include lumbar pain, numbness and pain in the lower limbs, limitation of movement, loss of tendon reflexes and so on. 1. Lumbar pain: it may be due to the compression of lumbar 4 and 5 bilateral nerve roots by the protruding disk, leading to the symptoms of lumbar pain, and in more serious patients, sometimes it can radiate to the buttocks and both hips. 2. Numbness and pain in the lower limbs: when the compression of lumbar 4.5 bilateral nerve roots, there may be numbness and pain in the lower limbs, with radioactivity, which can be radiated from the buttocks all the way along the back of the thighs to the front of the calves, as well as numbness and pain in the soles of the feet and the dorsums of the feet, accompanied by weakness of the toes. 3. Restriction of activity: If the nerve roots of lumbar 4 and 5 are compressed for a long time, muscle atrophy may occur, causing restriction of activity. 4. Loss of tendon reflexes: If the nerve roots of lumbar 4 and 5 are compressed bilaterally, tendon reflexes will be weakened or even lost. If the symptoms of bilateral nerve root compression in lumbar 4 and 5 occur, it is recommended to go to the hospital in time for early and regular treatment.