Your healthy nails have a pink soft hue. By looking at them you know that they are healthy. If they are not, it can be a reason to worry about, as it can be a sign of further problem.
Nail can provide an early symptom of problems such as skin cancer and other systemic issues. If you ever experience an obvious abnormally, consult your dermatologist.
One of fear disease is the skin cancer.It can be developed in the nail bed, matrix or nail folder. One of the deadliest skin cancer is Malignant Melanoma, and its earliest symptom is a long pigment, black or brown in the nail plate, usually the thumbs or the toes.