Which characteristics indicate that a male newborn may be a preterm infant?

A male newborn may be identified as a preterm infant by the characteristic of thin, wrinkled skin. In preterm infants, the skin often appears more fragile and less developed, lacking the subcutaneous fat that typically forms in the later stages of gestation. This underdevelopment contributes to a less smooth appearance, with an increased likelihood of wrinkles and less elasticity.

This trait is significant because preterm infants have not had the full gestational period to accumulate fat and develop skin layers fully, which is crucial for overall neonatal health and stability outside the womb. Recognizing this characteristic is essential for healthcare providers in assessing gestational age and managing the specific needs of preterm infants.

Other characteristics, such as large breast buds or strong grasp reflex, are not reliable indicators of prematurity. Large breast buds may be observed regardless of gestational age due to hormonal influences from the mother, while a strong grasp reflex is expected in both preterm and full-term infants. Flat pinnae when folded can suggest prematurity but is not as definitive as the skin characteristics.