Although the risk of miscarriage is most probable during the first trimester, the term of 16-18 weeks is characterized by missed abortion, which becomes a very hard test for the woman. There are several reasons of missed abortion. Physicians distinguish: intrauterine infection of the fetus, chromosomal abnormalities, Rh conflict and the impact of other negative factors.
A doctor may identify missed abortion at 16 weeks during the ultrasound examination – there will be no heartbeat in the fetus. If missed abortion was diagnosed, it should be mandatory interrupted in the hospital in order to avoid the infection of the female body.
After the interruption it is necessary to undergo a thorough and comprehensive examination to identify the causes of pregnancy fading. It is recommended to plan the next pregnancy at least 6 months after the forced medical intervention.