Take a close look at your fingernails. Are they strong and healthy looking? Or do you see ridges, dents, or areas of unusual color or shape? Many less than desirable nail conditions can be avoided through proper fingernail care. Others might indicate an underlying condition that needs attention. If your nails change, swell, or cause pain, see your dermatologist because these can be signs of serious nail problems. If you have diabetes or poor circulation, it’s especially important to seek treatment for any nail problems. If you have questions or concerns about caring for your nails, see a dermatologist.