Fetal bilateral intrachoroidal plexus cysts, small scattered cysts ≥3 mm in diameter in the choroid plexus of the lateral ventricles detected on ultrasound, are usually easier to detect at 14-24 weeks of gestation. Most fetal bilateral intrachoroidal plexus cysts resolve without treatment after 26 weeks, but if they do not, further screening is warranted and termination of pregnancy may be necessary. Most fetal bilateral choroid plexus cysts resolve after 26 weeks. Until 26 weeks, it is not necessary to treat the cysts, as they can be monitored and reviewed regularly. After regression, it has no effect on the growth and development of the fetus. If the bilateral choroid plexus cysts do not subside after 26 weeks and persist bilaterally, it is necessary to do the next step of interventional puncture and other tests. If the fetus is not associated with other abnormalities, the pregnancy can be continued and regular obstetric examination can be performed. If the fetus does not have other abnormalities, the pregnancy can be continued with regular checkups. If chromosomal abnormalities are present, termination of pregnancy should be considered if necessary. Fetal bilateral intrachoroidal plexus cysts should seek medical attention in a timely manner, after examination by a doctor for further treatment, and must be noted to be regular checkups.