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# The New Born Baby ## Definition: - A newborn refers to an infant in the first 14 days after birth. - The term applies to premature infants, post mature infants, and full term infants. ## Features of New Born Baby: ### Weight: - In developed countries, the average birth weight of a full-term n...

# The New Born Baby ## Definition: - A newborn refers to an infant in the first 14 days after birth. - The term applies to premature infants, post mature infants, and full term infants. ## Features of New Born Baby: ### Weight: - In developed countries, the average birth weight of a full-term newborn is approximately 3.5 kg and is typically in the range of 4-2.5 kg. - Over the first 0-V days following birth, the body weight of a term neonate decreases by 3-7% and is largely a result of the resorption and urination of the fluid that initially fills the lungs, in addition to a delay of often a few days before breastfeeding becomes effective. - After the first week, healthy term neonates should gain 0-20 grams/day. ### Length: - The length of a new born baby ranges from (35.6-6 cm). - The average (Cm) male new born baby is taller than female new born baby. ### The skin: - It is usually dark pink covered with few lanugo hairs. - **Lanugo hair:** It is a fine, immature hair covered the body of a new born baby especially the premature baby and some dark hair baby; it is usually disappear in the first week of life. - Infants may be born with full heads of hair; others, particularly Caucasian infants, may have very fine hair or may even be bald. - Among fair-skinned parents, this fine hair may be blonde, even if the parents are not. - The scalp may also be temporarily bruised or swollen, especially in hairless newborns, and the area around the eyes may be puffy. - **Vernix caseosa:** Soft white creamy layer covered the skin of the premature baby; disappear by terms. - **Mongolian spots:** Transient dark blue to black pigment seen over the lower back, buttock, in 90% of the black, Indian, and oriental babies; disappear in (1-2 years) of life. - **Hemangioma:** Transient pink macule in the back of the neck, eyelids, forehead. - **Milia:** Pin head whitish spot seen on the nose, chin; disappear in first (1-2 week) of life.