RT Book, Section A1 Diaz, Lucia Z. A1 Levy, Moise L. A2 Kline, Mark W. SR Print(0) ID 1182905035 T1 Neonatal Dermatology T2 Rudolph's Pediatrics, 23e YR 2018 FD 2018 PB McGraw-Hill Education PP New York, NY SN 9781259588594 LK accesspediatrics.mhmedical.com/content.aspx?aid=1182905035 RD 2024/04/23 AB The skin of a newborn infant differs from adult skin in several ways that place infants at increased risk for thermal instability, skin damage, percutaneous infection, and percutaneous toxicity from topically applied agents. The neonatal body surface area–to–weight ratio is far greater than that of an adult with thinner skin overall. Sebaceous glands are hypertrophic for several weeks after birth, under the influence of fetal and maternal androgens, but eccrine function does not mature until after term, placing newborns at risk for hyperthermia with overbundling. The vernix caseosa is composed of sloughed keratinocyte and sebaceous gland lipids, with a higher proportion of glandular lipids in males.