If a pregnant woman has mycosis vaginalis during pregnancy and it is not treated, the child may not be normal and it may cause amniotic fluid infection, premature rupture of membranes, fetal thrush and so on. 1. Amniotic fluid infection: mycosis fungoides during pregnancy in pregnant women, if not treated in time, may lead to bacterial upward infection of the uterus, resulting in amniotic fluid infection, and in severe cases, can endanger the fetus. 2. Premature rupture of fetal membranes: mycosis vaginalis can also cause premature rupture of fetal membranes, preterm labor or miscarriage due to bacterial infection stimulating the uterus. 3. Fetal thrush: If the pregnant woman has not been treated during pregnancy, it may cause the fetus to be infected by Candida albicans vaginal infection during labor and delivery, leading to thrush and other diseases in the baby. Once you find out that you have mycosis vaginalis during pregnancy, you need to go to the hospital as soon as possible, complete the relevant examinations, and then standardize the treatment.