Sciatica and sciatica are two different diseases with many differences, as follows: First, the site of onset is different. Sciatica develops from inflammatory diseases of the nerve itself, such as viral infection or its own aseptic infection and sciatica. The sciatica is often due to the stimulation of the sciatic nerve, such as the stimulation of the intervertebral disc, the stimulation of hyperplastic bone spurs, or tumors or traumatic adhesions around the pear-shaped muscle, which stimulate and compress the sciatic nerve and lead to sciatica. Second, the nature of pain is different, sciatica pain is continuous pain, while sciatica can be relieved after a certain recuperation and treatment, or a certain posture does not hurt, but in a special position when the pain appears. Third, treatment methods are different. Sciatica often requires antiviral or anti-inflammatory treatment, while sciatica often requires oral medication, such as oral nerve-nourishing drugs. The treatment of sciatica often requires the removal of the cause, such as the removal of the compression of the intervertebral disc, the removal of the compression of the osteophyte, and the removal of the compression of the tumor around the pear-shaped muscle, which can make the sciatica disappear after the cause is removed.