Recently, there have been frequent online inquiries about fetal septal hernia and its differentiation from pneumocystic adenoma, and several issues in the evaluation of fetal septal hernia are described as follows: 1. Prenatal detection of fetal septal hernia by ultrasound is already a more common problem, and several conditions are required for diagnosis. MR examination can be added if necessary. 2. After finding a suspected septal hernia, the diagnosis needs to be confirmed at the local tertiary prenatal diagnosis unit, i.e., it needs to be at a qualified hospital, such as a provincial people’s hospital or a health center. 3.After the diagnosis is confirmed, if you want to give up, you can be induced by the signature of two or more directors of the local tertiary hospital. 4.If you want to have it or want to know more about it or want to fight for it, you need to evaluate the fetus. The evaluation includes: the diagnosis of septal hernia; whether there is a combination of other malformations; the week of gestation when it is found, i.e. the earlier it is found, the worse the lung development, the worse the prognosis, usually found after 25 weeks, the prognosis is good; whether there is liver herniation, the prognosis is also poor; the degree of excessive amniotic fluid; the examination index of lung development, including LHR, O/E, etc. 5.There are three options for those who need to continue after evaluation: prenatal treatment, including fetal surgery, hormone therapy, etc.; surgery at delivery; and neonatal surgery. 6.Our current assessment results, 20% choose to give up and terminate the pregnancy, and 88% of the 80% continue the pregnancy are cured.