The evaluation of fetal development at 32 weeks of gestation is categorized into several aspects such as physical development and physiological function development. 1. Physical development (1) The length of the biparietal diameter is about 80mm. (2) The circumference of the head is about 180mm. (3) The circumference of the abdomen is about 170mm. (4) Femur length is about 60mm. (5) Weight is about 1700g. 2. Physiological function development: the fetal bone marrow and spleen gradually have hematopoietic function, and the number of fetal red blood cells have increased; the pulmonary circulation and respiratory muscle function have gradually begun to develop, and ultrasonography can see the activity of the chest wall and respiratory movement; the function of gastrointestinal tract has basically matured, and it can swallow amniotic fluid to absorb the nutrients; the urinary bladder already has urine, and it can urinate. Fetal bone and other developmental indicators may vary depending on race, genetics, nutrition and other conditions, so the above developmental conditions are only for reference and cannot be taken as an absolute standard for evaluation of development, and it is recommended to go to a professional medical institution for continuous monitoring of developmental conditions.