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.
Nail abnormalities often indicate an underlying medical condition or a deficiency in certain vitamins and minerals. Warning signs to look out for include yellow nail discoloration, nail splitting, nail cracking, black fingernails, ridges on nails, and white spots on fingernails. So even if you skip regular manicures and pedicures, pay close attention to your nails and discuss any toenail or fingernail changes or disorders with your doctor.