Measurement of uterine height and abdominal circumference during pregnancy is an important indicator to assess fetal development. At 12 weeks of pregnancy, the height of the uterine fundus is usually 2-3 cm above the pubic symphysis; at 16 weeks, it is between the navel and the pubic symphysis; at 20 weeks of pregnancy, the height of the uterine fundus is one transverse finger below the navel and the abdominal circumference is between 76-89 cm; at 24 weeks of pregnancy, the height of the uterus is two transverse fingers above the navel and the abdominal circumference is between 80-91 cm; at 28 At 28 weeks, the height of the uterus is three fingers above the navel and the abdominal circumference is between 82-94 cm; at 32 weeks, the height of the uterus is between the navel and the saber and the abdominal circumference is between 84-95 cm; at 36 weeks, the height of the uterus is two fingers below the saber and the abdominal circumference is between 86-98 cm; at 40 weeks, the height of the uterus is between the navel and the saber and the abdominal circumference is between 89-100 cm.