how do you get sciatica
Causes of Sciatica. Sciatica is caused by inflammation or compression of the sciatic nerve or nerve roots in the lower spine. It may also be caused by damage to nerve roots. Sciatica is not a disease in itself and its causes are various.*Compression of a nerve is often referred to as a pinched nerve..A pinched nerve in the lower spine causes sciatica. The most common cause of sciatica is a herniated disc in the lumbar spine (lower back) that puts pressure on the sciatic nerve or a nerve root.A herniated disc can occur suddenly and cause acute pain or it may develop gradually.Compression of a nerve is often referred to as a pinched nerve.. A pinched nerve in the lower spine causes sciatica. The most common cause of sciatica is a herniated disc in the lumbar spine (lower back) that puts pressure on the sciatic nerve or a nerve root.