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As the fetal hypothalamus matures, activation of the hypothalamic–pituitary–adrenal (HPA) axis initiates labor through two hormonal mechanisms. The end pathway of both mechanisms lead to contractions in the myometrium, a mechanical cause of placental separation, which is due to the shear force and contractile and involutive changes that occur within the uterus, distorting the placentome.
Lying-in is the term given to the European [citation needed] forms of postpartum confinement, the traditional practice involving long bed rest before [1] and after giving birth. The term and the practice it describes are old-fashioned or archaic, but lying-in used to be considered an essential component of the postpartum period, even if there ...
Mother with newborn baby. The postpartum (or postnatal) period begins after childbirth and is typically considered to last for six weeks. [1] There are three distinct phases of the postnatal period; the acute phase, lasting for six to twelve hours after birth; the subacute phase, lasting six weeks; and the delayed phase, lasting up to six months.
Isabella of Hainault rests after having given birth to the future Louis VIII of France.. Postpartum confinement is a traditional practice following childbirth. [1] Those who follow these customs typically begin immediately after the birth, and the seclusion or special treatment lasts for a culturally variable length: typically for one month or 30 days, [2] 26 days, up to 40 days, two months ...
Lochia serosa which persists to some weeks after birth can indicate late postpartum hemorrhaging, and should be reported to a physician. Lochia alba (or purulenta) is the name for lochia once it has turned whitish or yellowish-white. It typically lasts from the second through the third to sixth weeks after delivery.
Preterm birth is the birth of an infant at fewer than 37 weeks gestational age. Globally, about 15 million infants were born before 37 weeks of gestation. [147] Premature birth is the leading cause of death in children under five years of age though many that survive experience disabilities including learning defects and visual and hearing ...
The term "viability" is often used in two contexts: early in pregnancy, the term typically refers to whether a pregnancy is likely to continue developing normally, whereas later in pregnancy, it ...
The causes of post-term births are unknown, but postmature births are more likely when the mother has experienced a previous postmature birth. Due dates are easily miscalculated when the mother is unsure of her last menstrual period. When there is a miscalculation, the baby could be delivered before or after the expected due date. [23]