Usually resolves in 1-3 days. Neonatologist - A pediatrician who has special training in the care of new babies. They generally appear only during the first day after birth and disappear without treatment within the first week or so. NST - A test for the fetus. This test monitors fetal heart rate and reactivity.
Reactivity is a rise in fetal heart rate when a contraction occurs.
Obstetrician - A doctor who has special training in the care of women during pregnancy, childbirth and postpartum. This causes contractions. Then, fetal heart rates are monitored. Oxytocin - A natural substance which can cause contractions. It also helps stimulate the let down of milk in breast feeding women.