An elevated postpartum D-dimer is not a symptom, but an indicator of a test. This indicator is very high, indicating the formation of small blood clots in the body. If there is pulmonary or cerebrovascular embolism, it is very difficult to deal with. The key is not the result of this test, but whether the patient has a serious manifestation of amniotic fluid embolism or even pulmonary embolism. If there is, you should go to the treatment, and if not, you should be prepared for resuscitation, not to be taken lightly. In general, in the postpartum D-dimer, without special reasons, it starts to decline gradually in 1-2 weeks, that is, about 7-14 days. The high postpartum D-dimer can be prevented by taking medication, such as aspirin, to prevent the formation of blood clots and to maintain physical and mental health.