A. A. Ankylosing spondylitis is a type of arthritis that affects the spine. Ankylosing spondylitis symptoms include pain and stiffness from the neck down to the lower back.The spine 's bones (vertebrae) may grow or fuse together, resulting in a rigid spine.. A. Ankylosing spondylitis is a type of arthritis that affects the spine. Ankylosing spondylitis symptoms include pain and stiffness from the neck down to the lower back.
Medical Conditions. Peeling and breaking of the fingernails can be caused by a fungal infection of the nails. Less commonly, brittle nails are due to other nail or skin conditions, such as psoriasis. Sometimes, brittle nails are a sign of a general medical condition, such as thyroid disease or diabetes.
Trauma, pt 1. Some doctors believe that repetitive trauma to the fingernails causes them to regenerate, or grow, at an accelerated rate. This means that people who bite their nails are more likely to have nails that grow faster than people who don't bite their nails.