Maternal and fetal blood are generally not connected; the mother provides the fetus with the nutrients and oxygen it needs through the placenta and umbilical cord, but there is no exchange of blood between the mother and the fetus.
Maternal and fetal blood circulate within their respective cardiovascular systems, connected by the placenta as a barrier. Some fetal blood entering the mother’s body can stimulate the mother to produce the appropriate antibodies, leading to the occurrence of fetal hemolysis, such as an Rh-negative mother but an Rh-positive fetus.
Women who are pregnant are advised to undergo labor and delivery tests on time, especially for Rh-negative mothers, and if possible, try to build a file in a hospital with a blood bank to ensure the safety of the delivery process.
Women who are pregnant are advised to go to regular hospitals, have regular checkups, and deal with any abnormalities as soon as they are detected.