This is from factors including underdeveloped lungs of newborns, infection due to underdeveloped immune system, feeding problems due to underdeveloped brain, and jaundice from underdeveloped liver.Babies born between 39 and 41 weeks gestation have better outcomes than babies born either before or after this range. This special time period is called "full term". Whenever possible, waiting for labor to begin on its own in this time period is best for the health of the mother and baby. The decision to perform an induction must be made after weighing the risks and benefits, but is safer after 39 weeks.Events after 42 weeks are considered postterm. When a pregnancy exceeds 42 weeks, the risk of complications for both the woman and the fetus increases significantly. Therefore, in an otherwise uncomplicated pregnancy, obstetricians usually prefer to induce labour at some stage between 41 and 42 weeks. Postnatal period
The postpartum period also referred to as the puerperium, is the postnatal period that begins immediately after delivery and extends for about six weeks. During this period, the mothers body begins the return to pre-pregnancy conditions that includes changes in hormone levels and uterus size. Diagnosis
The beginning of pregnancy may be detected either based on symptoms by the woman herself, or by using pregnancy tests. However, an important condition with serious health implications that is quite common is the denial of pregnancy by the pregnant woman. About 1 in 475 denials will last until around the 20th week of pregnancy.
Craniotabes is softening or thinning of the skull in infants and children, which may be normally present in newborns. It is seen mostly in the occipital and parietal bones. The bones are soft, and when pressure is applied they will collapse underneath it. When the pressure is relieved, the bones will usually snap back into place. Causes
Any condition that affects bone growth, most notably rickets (from vitamin D deficiency), marasmus,  syphilis, or thalassemia, can cause craniotabes if present during a time of rapid skull growth (most especially during gestation and infancy). It can be a "normal" feature in premature infants. It is the first sign in children and infants with rickets. Diagnosis
Physical examination

Management
Management of craniotabes depends on the cause. The majority of craniotabes occurs in term infants and can be a normal finding. Commonly, craniotabes results from the position of the head inside the uterus weeks prior to delivery. Calcium and Vitamin D levels should be obtained to rule out rickets, and in mothers who have prenatal labs concerning for T. pallidum infection, neonates should be evaluated for congenital syphilis. Etymology
The term (cranio- + tabes) is derived from the Latin words cranium for skull and tabes for wasting. References


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