In most cases, the cause of
scoliosis is not known. This is called idiopathic
scoliosis. It develops mostly in children and teens and appears to be related
to several things, including genetics, as it often runs in families.
There are two types of scoliosis: nonstructural and structural.
As many as 40% of people will get sciatica, or irritation of the sciatic nerve, at some point in their life. This nerve comes from either side of the lower spine and travels through the pelvis and buttocks. Then the nerve passes along the back of each upper leg before it divides at the knee into branches that go to the feet.
Anything that puts pressure on or irritates this nerve can cause pain that shoots down the back of one buttock or thigh. The sensation of pain can vary widely. Sciatica may...
Structural scoliosis involves a
curve in the spine, with rotation, that is irreversible and is usually caused
by an unknown factor (idiopathic) or a disease or condition such as:
Disorders that were present at birth
(congenital), such as
spina bifida, in which the spinal canal does not close
properly; or a disorder that affects the formation of bones. These curves can be harder to correct. They often get worse as the child grows, especially during
the teen years.