One is the infection, the fetal preservation process found some signs of infection, such as the mother's body temperature increased, the heartbeat is particularly fast, the blood picture test for white blood cells increased, an indicator of infection in the body, C-reactive protein is also elevated, which is from the mother's point of view.
If you look at it from the physical examination, you may feel that the lower end is tender, and the secretions that flow out have some odor, which is a sign of some infection. Particularly rapid fetal heartbeat, tachycardia, fetal heart rate monitoring is also a particularly high baseline, or some poor baseline variation, are all signs of infection. In such cases, it is necessary to terminate the pregnancy immediately. If there is no sign of infection, of course, it is to try to protect, if the uterine opening has been opened very large, 5 centimeters or even larger, there may be no more significance in protecting the fetus, it will not be guaranteed.
Or there are some complications during pregnancy leading to premature birth, in the process of treating complications, according to the specific disease, the treatment of the situation, if the complication itself threatens the mother, or the safety of the fetus, it is not suitable to continue, there must be an iatrogenic premature birth problem, take the initiative to get out of this environment, the child can be safe, the mother's disease is generally controlled, so these situations may have to quickly let the child out and terminate the pregnancy.