If a woman has no other special discomfort during pregnancy, oxygen inhalation is not recommended because the oxygen in the air is sufficient to meet the body’s needs. Oxygen inhalation should only be considered under special circumstances, such as late pregnancy, when fetal movement is poor and there is a possibility of fetal swelling and rupture. If a pregnant woman becomes dizzy when receiving oxygen, it is possible that the concentration of oxygen intake is relatively high or the flow rate is relatively high, causing discomfort and discomfort to the head and causing dizziness. In this case, you should adjust the flow rate and purity to suit your body’s needs. There is also a reason that dizziness may be caused by anemia or insufficient blood supply to the brain.