Rohn R D
Department of Pediatrics, Eastern Virginia Medical School, Norfolk.
J Adolesc Health Care. 1989 Jan;10(1):39-40. doi: 10.1016/0197-0070(89)90045-4.
Previous cross-sectional and longitudinal studies of girls have documented that they have a significant growth in nipple size during Tanner stages pubic hair (PH)4 and PH5 or breast (B)4 and B5. This study assesses whether there is any effect of pregnancy on nipple development in adolescent girls. Thirty-three pregnant girls were compared to a previously reported group of 390 girls who were not pregnant. Of the 33 girls, ten were followed longitudinally for a period of nine to 79 months, during which time they became pregnant. In each girl, nipple diameter was measured and the Tanner stage assessed. A markedly significant increment in nipple size was noted in the girls who were pregnant (pregnancy nipple size 12.6 mm vs. PH5 9.7 mm and B5 9.9 mm). Comparison of ten girls prior to and during pregnancy revealed a significant increment as well (10.2 mm vs. 12.8 mm, respectively). Pregnancy provides a further stimulus for nipple development in girls beyond that which occurs during normal puberty.
先前针对女孩的横断面研究和纵向研究均已证明，在坦纳阴毛分期（PH）4期和PH5期或乳房分期（B）4期和B5期时，她们的乳头尺寸会显著增大。本研究旨在评估怀孕对青春期女孩乳头发育是否有任何影响。将33名怀孕女孩与先前报道的390名未怀孕女孩进行比较。在这33名女孩中，有10名被纵向随访了9至79个月，在此期间她们怀孕了。对每个女孩测量乳头直径并评估坦纳分期。结果发现，怀孕女孩的乳头尺寸有显著增加（怀孕时乳头尺寸为12.6毫米，而PH5期为9.7毫米，B5期为9.9毫米）。对10名女孩怀孕前和怀孕期间的比较也显示出显著增加（分别为10.2毫米和12.8毫米）。怀孕为女孩的乳头发育提供了超出正常青春期的进一步刺激。
