<unk>  <unk> , alternatively "Neonatal<unk>  of<unk> ") occurs when infants take<unk>  into their lungs during or before delivery.<unk>  is the first stool of an infant, composed of materials ingested during the time the infant spends in the uterus: intestinal epithelial cells, lanugo, mucus, amniotic fluid, bile, and water.<unk>  is sterile, unlike later feces, and has no odor.<unk>  is normally stored in the infant's intestines until after birth, but sometimes (often in response to fetal distress) it is expelled into the amniotic fluid prior to birth, or during labor.  If the baby then inhales the contaminated fluid, respiratory problems may occur.
Meconium aspiration syndrome
Tracheoesophageal fistula
Tracheomalacia
Meconium plug syndrome
Meconium ileus
Upper airway resistance syndrome
Transient tachypnea of the newborn
Laryngomalacia