The phrase "normal birth" refers to the usual and natural way a baby is born. It means the baby is delivered through the mother's birth canal without any major medical interventions. Full definition
The midwife is the expert in normal birth with extensive professional training and specialist skills. (aimsireland.ie)
Normal birth weight of pups depends on breed type (120 — 550 g). (merckvetmanual.com)
To date, information regarding its use in pregnancy is limited to small case series and case reports, with normal birth outcomes reported (58). (acog.org)