30-32 weeks of mini-examination is a pregnant woman through the ultrasound to check whether the fetus has any shape and organ deformities. 30-32 weeks of pregnancy, this is already the late stage of pregnancy, at this time the fetus’s organs and systems have basically matured, the amount of amniotic fluid is more, the transparency of amniotic fluid is also relatively high, so through the ultrasound examination can clearly determine the development of the fetus. During this period, the ultrasound examination can firstly judge the appearance of the fetus, for the appearance of congenital developmental abnormalities, such as anencephaly, spina bifida, missing limbs or fingers, cleft lip and palate and so on, generally can be clearly judged. It is also possible to determine the development of fetal organs and diagnose congenital heart malformations, kidney defects, and so on. If abnormalities are detected, it is necessary to assess whether the pregnancy can continue.