Mini-diagnostic examination mainly examines the development of the fetus and measures the head circumference, biparietal diameter and other values of the fetus, which will cost about $200-450. The exact cost varies depending on the region and hospital, so it is recommended to consult your local medical institution. Mini-diagnostic examination is usually performed at 28 weeks-30 weeks of pregnancy, mainly through ultrasound to check whether there is any fetal developmental abnormality, mainly to check the development of various fetal systems, screening for anencephaly, brain bulge, single-chambered heart and other conditions. Measure the size of the fetus, including head circumference, biparietal diameter, abdominal circumference, and femur length. Measurement of the fetal umbilical cord, placenta, and amniotic fluid. Based on the results of these tests to assess the overall development of the fetus, the general price of the test ranges from 200-450 yuan, this price is affected by a variety of factors, different cities, different levels of hospitals, the pricing is somewhat different, it is recommended to go to the local hospital for consultation and examination. Pregnant women during pregnancy should pay attention to do a good job of prenatal checkups, actively listen to the advice of professional doctors to do a good job of comprehensive care and health care, pay attention to rest, at the same time should be relaxed, to avoid nervousness, anxiety, there is any discomfort should be timely to the hospital, by the doctor to clarify the diagnosis, and cooperate with the doctor to deal with the symptoms.