What Happens If Nerve Dies In Your Back Leg I Was Told That Compressed Nerve Could Cause Nerve To Die?

Tarlov cysts are sac filled with fluids and commonly affect nerve roots in the sacrum. These cysts can compress the nearby nerves leading to low back pain,  sciatica,  urinary incontinence, loss of feeling or control of movement in the leg/foot, and sexual dysfunction.
There is no permanent cure of tarlov cysts, only symptomatic relieve is achieved after draining the sac or by use of steroids. If these cysts remain untreated then permanent damage to nerve roots can be resulted which can cause permanent disabilities.