Observations:
A 20-year-old woman presented with a 5-year history of irregular thickening of both nipples. On physical examination, both nipples were covered with yellowish-brown crust-like verrucous papules. Nevoid hyperkeratosis of the nipple and areola is characterized by irregular, verrucous thickening and yellow-brown hyperpigmentation of the nipple or/and areola. It may be unilateral or bilateral. It usually affects women in the second or third decade of life, especially during pregnancy.
Keywords: Nevoid hyperkeratosis of nipple and areola, etiology, treatment