Nicolaus Copernicus University Ludwik Rydygier Medical College, Bydgoszcz, Poland.
Rutgers University New Jersey Medical School, Newark, New Jersey.
J Cosmet Dermatol. 2019 Jun;18(3):700-702. doi: 10.1111/jocd.12884. Epub 2019 Feb 22.
Pigmentary demarcation lines (PDLs) are physiological abrupt transitions between hyperpigmented and lighter skin, a common and sometimes troubling feature of normal skin. They are seen in a majority of dark-complexioned women and a substantial percentage of light-complexioned ones too. We review this salient finding and approaches to its management.
色素分界线（PDLs）是指色素沉着和浅色皮肤之间的生理性急剧过渡，这是正常皮肤的常见且有时令人困扰的特征。它可见于大多数深色皮肤的女性和相当一部分浅色皮肤的女性。我们回顾了这一显著发现及其处理方法。
