Sciatica is a leading form of back pain sometimes caused by herniated disc compressing spinal nerves causing pain in the low back down the leg. If the cause of the Sciatica isn’t nerve compression from a herniated disc, then the cause is almost always a tight muscle called the Piriformis. If a tight piriformis is the cause, massage therapy can help to relieve the pain. Below you can get a better understanding of disc herniation and other conditions that would cause compression of spinal nerves.
Sciatica is treated with physical therapy and, when necessary, surgery however prevention is better than treatment. Good posture and consistent exercise is some of the top methods of prevention of sciatica.
Source: Mount Sinai Hospital