| pubmed-article:3780307 | pubmed:abstractText | Five patterns of natural pigmentary demarcation lines have been described, occurring most frequently in dark-skinned persons. We report the appearance of these lines on the lower limbs of four Puerto Rican women during pregnancy; the lines faded postpartum. Our findings document group B pigmentary demarcation lines that can completely regress postpartum as another less frequently recognized physiologic change of pregnancy. | lld:pubmed |
