Apart from physiological and somatic changes, pregnancy is a complex phenomenon which also includes psychological and social changes. Psychosocial stress during the pregnancy can be the triggering event of a bad placentation, endangering the fetus wellbeing or health. This can result in pathological condition including intrauterine growth restriction (IUGR) or premature birth. Stress can also have consequences on the delivery, influencing the physiological mechanisms that orchestrate the eutocic birth. Here the authors review some of the evidence of the psychoneuroendocrinoimmunology (Pnei) of pregnancy and delivery, spacing from physiological to pathological aspects. Paying attention to any emotional and psychological changes during pregnancy will help keep mother and baby safe and healthy.
Keywords: Pregnancy, Preterm birth, IUGR, Labour, Stress, Pnei.