Abstract：
Cutaneous alterations are common in neonates and usually occur in the first few days of life. Most of these are transient and benign, appearing as physiological responses to birth. Skin pigmentation disorders are considered transitory dermatoses of newborn infants. Nail pigmentation manifests as asymptomatic brown to bluish-black skin pigmentation over the fingers and toes in newborns. Hyperpigmentation of the distal phalanx of both hands and feet is commonly found in dark-skinned newborns, but it is rare in fair-skinned newborns and East Asian populations. We herein describe a Chinese infant with transient neonatal hyperpigmentation of the proximal nail fold.
摘要：
皮肤改变在新生儿中很常见，通常发生在生命的最初几天。其中大多数是短暂的和良性的，表现为对出生的生理反应。皮肤色素沉着障碍被认为是新生儿的短暂性皮肤病。指甲色素沉着表现为新生儿手指和脚趾上无症状的棕色至蓝黑色皮肤色素沉着。在深色皮肤的新生儿中，常见的是手和脚的远端指骨的色素沉着，但在皮肤白皙的新生儿和东亚人群中很少见。我们在此描述了一名中国婴儿，其新生儿近端甲皱短暂色素沉着过度。
