To notice your fingernails in your dream, indicates that your defenses are up. Consider the length of the nails, the color (if applicable), the condition, and the cleanliness of the nails for additional meaning to your dream.
To dream that you broke a fingernail, suggests that you are trying to avoid some situation or trying to get out of a responsibility. Alternatively, the dream may reflect your self image. You are overly concerned with how others perceive you.
To dream that you are polishing your fingernails, represents glamour.
To dream that you are chewing your nails, indicates that a problem is too tough to handle. You are not sure how to go about resolving a situation in your waking life.
To dream that you fingernails are growing rapidly, refers to your desires to reach out to someone. You want to be able to extend a part of yourself to others.
To dream that a man has long red fingernails, suggests that he is very in touch with his sensitivity and emotions. It may also relate to issues of sexuality and sensuality.