Level 1: What is amniotic fluid thrombosis? Amniotic fluid thrombosis means that part of the fetus or placenta enters the maternal circulation, causing blood clots in pregnant women. This situation may lead to dangerous conditions such as hypoxia, shock, and heart failure in pregnant women, which may even be life-threatening. Level 2: Symptoms of amniotic fluid thrombosis Symptoms of amniotic fluid thrombosis include shortness of breath, wheezing, chest tightness, palpitations, dizziness, fatigue, etc. In severe cases, pregnant women may experience convulsions, coma, etc.