If women masturbate during pregnancy is not conducive to the normal growth and development of the fetus: first, masturbation without attention to hand hygiene can easily lead to bacterial upstream infection, infection during pregnancy without attention can lead to abnormal fetal development or even miscarriage. Secondly, masturbation is too violent or stimulating and can lead to abnormal contractions of the uterus, which can lead to miscarriage if the embryo is not yet stable in early pregnancy, or premature birth in late pregnancy, which is very bad for the fetus. If it is really physiological needs can be in the middle of pregnancy fetal development is more stable when occasional intercourse, and before and after intercourse both men and women should do a good job of genital hygiene, not recommended to take the way masturbation. If symptoms such as abdominal pain and vaginal bleeding occur after masturbation, it is advisable to consult a specialist as soon as possible to avoid adverse consequences.