In a slightly premature newborn, where is a thick, yellowish, clinging vernix caseosa most commonly concentrated?
Answer
Neck folds, armpits, and groin creases
The visual presentation of vernix caseosa is highly variable depending on gestational age and activity before birth, but its distribution tends to favor protected areas when it is thick. In babies born slightly early, the substance does not always wash off evenly or absorb readily in areas where skin touches skin. Consequently, it often appears thickest and most visible, sometimes appearing distinctively yellow or pasty, concentrated within the natural creases and folds of the body, such as the neck creases, under the arms (armpits), and in the groin area.

Related Questions
What does the Latin term "vernix caseosa" literally describe regarding its texture and appearance?What substance forms the main component that gives vernix caseosa its waterproofing property in utero?How does the amount of vernix caseosa present typically relate to babies born prematurely versus those born overdue?What specific damage does vernix caseosa shield delicate fetal skin from while immersed in the amniotic fluid?What beneficial effect on the newborn's skin surface results from vernix caseosa reducing the skin's pH level after birth?What is the recommended maximum delay for the initial full bath according to many pediatric and obstetric guidelines to maximize vernix benefits?In a slightly premature newborn, where is a thick, yellowish, clinging vernix caseosa most commonly concentrated?What specific materials, mixed with water and fats, constitute the composition of the vernix caseosa emulsion?Why does maintaining the vernix layer remain a crucial consideration for newborns delivered via Cesarean section regarding temperature?What negative immediate consequence occurs if a newborn with significant vernix is washed too soon with harsh soap and water?