Sudden onset of vaginal bleeding in the third trimester of pregnancy is a critical situation, and it is recommended that an ultrasound be performed in time to observe the development of the fetus and changes in fetal heartbeat, and that the fetus be kept alive or the uterus be evacuated according to the fetal condition.
The third trimester of pregnancy is equivalent to about 12 weeks of pregnancy, before 12 weeks of pregnancy is the high incidence of preeclampsia, at this time the vaginal bleeding is an obstetric emergency.
If the bleeding is small, after ultrasound, progesterone, blood HCG and other tests to observe fetal development is still OK, you can be under the guidance of the doctor bed rest or the use of progesterone and other drugs for fertility preservation treatment, when the bleeding is more and no fetal heart, the need for timely removal of the uterus.
After pregnancy, it is recommended that pregnant women should have appropriate activities, avoid heavy physical labor, avoid sexual intercourse in early pregnancy, and undergo regular obstetric examination to reduce the rate of fetal diseases and mortality.