They don't make for the prettiest of manicures, but are they something more than a cosmetic problem? Here's what a dermatologist and research have to say.

Brittle One of the most commonly reported nail problems is rough, splitting nails that may also crack easily. Officially called onychoschizia, brittle nails are usually caused by repeated wetting and ...

Developing a new and persistent cough, as well as wheezing or coughing up bloody phlegm are all symptoms that could signal problems with your lung health and potentially be early signs of lung cancer.

Clubbed nails have a distinctive curvature and softness. This nail change can be harmless, but it may be a sign of lung or heart disease. Seeking medical care if your nails change shape or become ...