Mees Lines (horizontal White)

Your Path

  • Mees Lines (horizontal white)


  • Injury to the nail matrix

Risk Factors

  • Associated with renal failure, arsenic poisoning, heavy metal poisoning, chemotherapy


  • Lines move distally over time as nail grows out

Physical Exam Findings

  • Multiple white horizontal lines
  • Can be one or multiple nails
  • Can extend across entire width of nail
  • Lines dont diminish w/direct pressure to nail plate