Some patients around Worcester Massachusetts come into the office because their big toenail is changing color. You can see this nail has a dark brown line in the center of the nail. This is usually nothing to worry about and is caused by the natural pigment in the skin under the nail. Sometimes though this can be concerning and a melanoma of the nail base. To be on the safe side a nail biopsy can be taken of the skin under the nail to make sure there are no problems.
To your health,
Dr. Donald Pelto