when your spine is curved in a shape of a "s" or a "c".
it is usually passed down in the family.and it does cause alot of pain.but if you do back excersises it helps reduce the pain.if you are still growing and the doctors notice it soon enough they will put you in a back brace,which is uncomfortable.
girls are known more commonly to have it.
if your spine curves are close to 45 degrees,they will suggest surgery.
I have scoliosis.I have had it for over 3 years.when I got told I had it I cried.and when I got realeased from my back brace for good I cried.
it hurts alot,and I took alot of alieve.