1. Spondylitis: It’s an inflammatory of arthritis affecting the spine and large joints. The condition is more common among men and usually begins in early adulthood. Symptoms typically appear in early adulthood and include reduced flexibility in the spine. This reduced flexibility eventually results in a hunched-forward posture. Pain in the back and joints is also common.
2. Spondylosis: Spondylosis is a general term for age-related wear and tear of the spinal discs. Spondylosis is common and worsens with age. This condition is often used to describe degenerative arthritis (osteoarthritis) of the spine. Most people don't have symptoms, but some may experience pain or muscle spasms.
3. Spondylolysis: Spondylolysis is a crack or stress fracture in one of the vertebrae, the small bones that make up the spinal column. The injury most often occurs in children and adolescents who participate in sports that involve repeated stress on the lower back, such as gymnastics, football, and weight lifting. This is a common cause of low back pain in young athletes.
4. Spondylolisthesis: In some cases, the stress fracture weakens the bone so much that it is unable to maintain its proper position in the spine—and the vertebra starts to shift or slip out of place. This condition is called spondylolisthesis.
5. Lordosis: It’s a condition of curving inward of the lower back. Some lordosis is normal. Too much is referred to as sway-back. It may be inherited or caused by conditions such as arthritis, muscular dystrophy and dwarfism. Lordosis causes an unusually large, inward arch on the lower back, just above the buttocks. The condition may cause lower back pain.
6. Scoliosis: It’s a sideways curvature of the spine. Scoliosis occurs most often during the growth spurt just before puberty. Most cases are mild with few symptoms. Some children develop spine deformities that get more severe as they grow. Severe scoliosis can be painful and disabling.
7. Kyphosis: It’s a forward rounding of the back. Hunchback (kyphosis) usually refers to an abnormally curved spine. It's most common in older women and often related to osteoporosis. Some people with kyphosis have back pain and stiffness. Others have no symptoms other than an exaggerated forward rounding of the back. Severe kyphosis can cause pain and be disfiguring.
8. Ankylosing spondylitis: It’s an inflammatory arthritis affecting the spine and large joints. The condition is more common among men and usually begins in early adulthood. Symptoms typically appear in early adulthood and include reduced flexibility in the spine. This reduced flexibility eventually results in a hunched-forward posture. Pain in the back and joints is also common.
9. Spinal Canal Stenosis: Spinal stenosis is a disorder that is caused by a narrowing of the spinal canal. The narrowing occurs on the open spaces in the lumber (lower) spine. The tightness can pinch the spinal cord or the nerves around it, causing pain, tingling, or numbness in your legs, arms, or torso. Symptoms include pain or cramping in the legs when standing for long periods or when walking. The discomfort usually eases when bending forward or sitting down.