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.
One of the most common causes of yellow nails is a fungal infection. As the infection worsens, the nail bed may retract, and nails may thicken and crumble. In rare cases, yellow nails can indicate a more serious condition such as severe thyroid disease, lung disease, diabetes or psoriasis.hough nail changes accompany many conditions, these changes are rarely the first sign. And many nail abnormalities are harmless -- not everyone with white nails has hepatitis. If you're concerned about the appearance of your nails, see a dermatologist.