The general price of doing 4D is around 400 yuan. It is best to go to the local hospital for consultation, different hospitals and different regions charge different standards. It is necessary to make an appointment in advance for 4D ultrasound, and it is best to make an appointment one month in advance because there is a time limit for 4D ultrasound, usually at 24-26 weeks of pregnancy, and if the appointment is late it will affect the examination results. During pregnancy, you should pay attention to rest, strengthen diet and nutrition, and do not take drugs and exposure to X-rays indiscriminately, which can prevent fetal malformation. Through 4D ultrasound examination, fetal malformations such as multiple malformations of the face, head, blood vessels and heart can be ruled out. During pregnancy, you should pay attention not to overexert yourself and pay attention to listen to more music and keep your mood relaxed, which is beneficial to your baby’s development.