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.
White nails. If most of the nail has turned white and it isn't because it has become detached from the nail bed, it's likely to be either a fungal nail infection or a sign of decreased blood supply to the nail bed, which causes something known as Terry's nails.