Kyphosis refers to forward curvature of the spine. The resultant is hunched back and a slouching posture. Scoliosis refers to 'S' or 'C' shaped curvature of the spine. It is a sideways curve of the vertebral column. Reference: https://www.pennmedicine.org/updates/blogs/musculoskeletal-and-rheumatology/2019/april/scoliosis-and-kyphosis-whats-the-difference#:~:text=Scoliosis%20is%20a%20sideways%20curve Image via: https://www.spineuniverse.com/conditions/kyphosis