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A miscarriage, or spontaneous abortion, is defined as a "natural pregnancy loss before 20 weeks of gestation." [6] According to The American College of Obstetricians and Gynecologists (ACOG), miscarriage is the most frequent type of pregnancy loss. [7]
[13] [14] Once ultrasound or histological evidence shows that a pregnancy has existed, the term used is clinical miscarriage, which can be "early" (before 12 weeks) or "late" (between 12 and 21 weeks). [13] Spontaneous fetal termination after 20 weeks of gestation is known as a stillbirth. [15] The term miscarriage is sometimes used to refer to ...
Preterm birth is the most common cause of perinatal mortality, causing almost 30 percent of neonatal deaths. [7] Infant respiratory distress syndrome, in turn, is the leading cause of death in preterm infants, affecting about 1% of newborn infants. [8] Birth defects cause about 21 percent of neonatal death. [7]
Embryo loss (also known as embryo death) is the death of an embryo at any stage of its development which in humans, is between the second through eighth week after fertilization. [1] Failed development of an embryo often results in the disintegration and assimilation of its tissue in the uterus , known as embryo resorption.
Early pregnancy loss is a medical term that when referring to humans can variously be used to mean: Death of an embryo or fetus during the first trimester . This can happen by implantation failure , miscarriage , embryo resorption , early fetal resorption or vanishing twin syndrome.
Stillbirth is typically defined as fetal death at or after 20 or 28 weeks of pregnancy, depending on the source. [1] [2]: Overview tab, [8] It results in a baby born without signs of life. [9] A stillbirth can often result in the feeling of guilt or grief in the mother. [10]
Women’s health expert Dr. Jennifer Wider tells Yahoo Life that “weeks 5 to 9 is the early time period in a pregnancy. At 5 weeks, the embryo is a mass of cells with a developing neural tube ...
Coffin birth, also known as postmortem fetal extrusion, [1] [2] is the expulsion of a nonviable fetus through the vaginal opening of the decomposing body of a deceased pregnant woman due to increasing pressure from intra-abdominal gases.