Feeling like something is going to fall out of the vagina during 21 weeks of pregnancy requires prompt medical attention, such as vaginal inflammation can be treated with medication vaginally, such as preeclampsia can be treated with birth control. If you are pregnant and feel that something is going to fall out of your vagina, it may be caused by vaginal inflammation that leads to more secretions and preterm miscarriage. If the vaginal inflammation caused by more discharge caused, often have to improve the examination of the leukorrhea, clear infection germs, such as mycosis vaginitis, bacterial vaginosis can be given vaginal treatment with nitrofurantoin as prescribed by the doctor. If it is caused by pre-eclampsia, ultrasound and gynecological examination should be completed to clarify whether the uterine opening is closed and whether the fetus is alive. If the fetus is alive and the uterine opening is closed, Ritodrine hydrochloride can be given to inhibit contractions to protect the fetus, and if accompanied by vaginal bleeding, cefuroxime can also be given to fight infection. During pregnancy, pay attention to rest more, at the same time should relax, avoid tension, anxiety, any discomfort should be timely to the hospital, by the doctor to clarify the diagnosis, and cooperate with the doctor to deal with the symptoms.