Non-invasive is also known as non-invasive DNA, one side of the fetal clubfoot can do non-invasive DNA, non-invasive DNA results have abnormalities and then further do amniocentesis. Fetal entropion is also known as clubfoot, clinically it can be seen as single foot entropion, also can be seen as double foot entropion, checking single foot entropion can be done first non-invasive DNA test, non-invasive DNA test has no damage to the pregnant woman, the safety will be higher, the test result is normal, just simple foot entropion, the fetus can be retained. If the result of non-invasive DNA test is abnormal, you can further do amniocentesis test, its accuracy will be higher than non-invasive DNA, but amniocentesis test is invasive, improper operation may increase the risk of intrauterine infection, bleeding and other risks, but it is not absolute, now the clinical technology is more mature, the chance of injury is relatively small. If there is an abnormality in the amniocentesis test, it is prudent to consider whether to continue the pregnancy, and induction of labor is usually recommended. Simple clubfoot can be treated surgically when the fetus is one week old, at this time the fetal bone development is very soft, it is easier to correct, the later the more bad treatment. The later it is, the more difficult it is to treat. If you are pregnant, you should have a good pregnancy checkup, so that any problems can be detected and dealt with in a timely manner.