Nail Diseases– When we look at nails, past the manicure and hand treatments, your nails actually say much about your overall health than you think. Rosy pink nails reveal good overall health while cracking, white, dark or bluish nails are often signs serious illness. This can include anything from anemia, liver disease, heart problems, malnutrition and more. Your nails can also suffer from various infections and diseases from fungal infections, psoriasis and in some cases, advanced forms of skin cancer. If you notice something out of the ordinary in the appearance of your nails, it is best to see a dermatologist.