Symptoms of lumbosacral nerve root damage mainly include pain in the lumbar region and other parts of the body and weakness of the lower limbs, manifestation of cauda equina syndrome and so on. 1. Pain: Damage to lumbosacral nerve roots can lead to pain in the corresponding parts. For example, when the nerve roots of lumbar 2-lumbar 3 and lumbar 3-lumbar 4 are compressed, pain in the anterior medial side of the thigh or the groin area can occur. 2. Lower limb weakness: Damage to the nerve roots in the lumbosacral region may cause numbness and weakness of the lower limbs, which may be accompanied by mobility disorders in the calves and other parts of the body. 3. Cauda equina syndrome: If the cauda equina nerve is damaged, it can cause urinary and defecation disorders and sensory disorders in the saddle area, such as cauda equina syndrome. If there is any discomfort, it is recommended to consult a doctor in time for diagnosis and treatment.