What causes fetal pericardial effusion?

Fetal pericardial effusion may be caused by intrauterine infection stimulation. Women do not pay attention to perineal cleanliness during pregnancy, resulting in infection prone to this test result. It is recommended that if the fetal pericardial effusion is not serious, it can be temporarily untreated, which will be slowly absorbed by the body as the fetus grows. If the infection is serious, pregnant women need to actively carry out anti-infection treatment.