The 30th week of pregnancy belongs to the late stage of pregnancy, during which the fetus grows and develops faster, and the length, weight, abdominal circumference, biparietal diameter and femur all increase to some extent. Fetal organs are more developed in 30 weeks of pregnancy, bones continue to develop, abdominal circumference, biparietal diameter, length will have different degrees of growth, fetal weight grows rapidly, subcutaneous fat begins to become thicker, weight gain can be more than 200g per week. 30 weeks of gestation after the fetus in the mother’s uterus has been fixed in the position, and the neurological function in the gradual improvement of the brain cells are growing rapidly, the lungs with the other organs basically complete the development of the lungs. After 30 weeks of pregnancy, the fetus grows fast, and the demand for nutrition increases. At this stage, pregnant women should consume enough calcium, protein, vitamins, etc., to provide the fetus with appropriate nutrition. After 30 weeks of pregnancy, the fetus grows fast, pregnant women also need to eat a balanced diet, appropriate exercise, to avoid excessive weight gain.