Fetal right foot entropion at 18 weeks is recommended to be further examined for other malformations, and simple right foot entropion can be corrected after birth. 18~24 weeks of pregnancy is more suitable for checking whether the fetus has clubfoot, at this time, the fetus size development is moderate, intrauterine amniotic fluid volume is sufficient, limbs show clearly, it is more accurate to determine whether the fetus has clubfoot, to minimize misdiagnosis. To check for clubfoot at 18 weeks of pregnancy, it is necessary to continue to do ultrasound to exclude whether there are other organs and system abnormalities, and to do non-invasive DNA or amniocentesis to determine whether there are any chromosomal abnormalities in the fetus, and if the results of the tests are normal in all aspects and the fetus has only simple clubfoot, the fetus can be corrected after delivery. If the results are normal, the simple clubfoot can be corrected after delivery. If other organ malformations or chromosomal anomalies are found through various tests, the pregnant woman and her family should carefully consider whether to continue the pregnancy.