Whether sterilized water is harmful to pregnant women needs to be judged according to the concentration of sterilized water and the number of times a pregnant woman comes into contact with it. Occasional contact with sterilized water once or twice basically will not cause great harm to pregnant women and will not affect the normal growth and development of the fetus. If the concentration of sterilized water exposed is relatively high, or if the pregnant woman stays in an environment with sterilized water for a long time, it may cause certain effects on the pregnant woman’s body, such as respiratory infections, or various problems such as delayed fetal development and abnormal brain development. Prolonged exposure to harmful disinfectant water will affect the respiratory system and other organs, as well as the skin and mucous membranes, which in the long run will cause irritation and various diseases, and will also lead to various complications.