subject: How long does Sciatica Last? [print this page] The length of time you can suffer from sciatica directly corresponds to how long it takes to diagnose the root of the problem. These pains occur when there is pressure on the sciatic nerve, and you and your doctor can work together to discover why. Common causes of sciatica do include: herniated spinal disks, slipped disks, degenerative disk disease, spinal stenosis, pelvic injury or fracture, or tumors. If the cause of the sciatica is caught in enough time, you can avoid long-term damage. The extent of disability ranges from nothing to complete loss of movement and flexibility. Pain or weakness in the nerves may persist and be severe for a period of time.