why do i have white lines on my toenails
Most white lines on nails are harmless and should be of no concern. However, if you have similar lines on many nails or a pair of lines that runs all the way across the nail, these could be an indication of a more serious underlying condition.If you have these types of white lines or if your lines don't go away as your nails grow, seek medical advice from your doctor.uehrcke Lines. In some instances, white lines on the nails appear as a pair of parallel lines that run horizontally across the nail, from one side to the other. These lines -- known as Muehrcke lines -- stay in the same place and do not move when the nail grows.