When a newborn baby croaks, family members are immersed in the joy of the arrival of the new life. Careful parents will find that the baby’s skin has a layer of white stuff adhering to it, and it feels greasy to the touch. What is this stuff? Today, let’s explore it. The white greasy stuff? –A newborn baby has a layer of white greasy stuff on its skin, some parts are more, some parts are less, this is the fat brought out from the mother’s belly, medically known as “fetal fat”. The unsightly fetal fat is actually the baby’s “protective coat” Although the fetal fat adheres to the newborn’s delicate skin and looks particularly unsightly, in fact, this small fetal fat is really the baby’s “protective coat”, which can protect the baby in the mother’s belly and the newborn’s It protects the baby in the mother’s womb and during the time of birth. We all know that the mother’s womb is full of amniotic fluid, and some people wonder why the fetus’s skin is not damaged by the amniotic fluid. In fact, the secret lies in the thin layer of fetal fat. The white fetal fat adheres to the fetal skin, effectively blocking the direct contact between the amniotic fluid and the skin, thus protecting the delicate skin of the fetus from being infiltrated by the amniotic fluid. Protection during the neonatal period When a newborn is born, the temperature of the surrounding environment is relatively low, and the body heat will be radiated in all directions, making the body temperature lower. At this time, the white fetal fat once again plays its role. The thin fetal fat adheres to the skin and wraps around the body like a “protective coat”, reducing the heat dissipation from the body and maintaining the body temperature at a constant level. The baby’s body may look uncomfortable, but you don’t need to take the initiative to wipe it off. All new mothers have to do is watch for a few days, and you will see the white fetal fat magically disappear. This is because fetal fat usually absorbs itself within 1-2 days after birth, so there is no need to wipe it off. For the baby behind the ears, neck, armpits, elbows, thighs and other folds of the accumulation of fetal fat, you can use sterilized skimmed cotton dipped in sterilized paraffin oil or baby emollient oil, keep it for a few moments to soften, and then gently scrub, so as to reduce the stimulation of the skin by the decomposition of fetal fat.