The 8-month-old fetus belongs to the stage of prematurity compared to 32-35 weeks of pregnancy, the fetus is already formed, all organs are in the process of gradually growing and maturing, and has certain survival ability. 1. fetal outline: the biparietal diameter of the fetus is about 8-9cm, the average length of the femur is about 6-7cm, and the body length can reach about 40-45cm. the average weight of the fetus at 32 weeks of pregnancy is generally 1900g or so, the average weight at 35 weeks of pregnancy is around 2600g, the skin is dark red and still wrinkled; 2. Organ development: the fetal brain at 8 months is developing extremely rapidly, the brain and nervous system have basically developed to a certain extent. The development of the lungs is also gradually approaching maturity. Generally, if there are no serious comorbidities, such as gestational diabetes, the fetal lungs are basically mature after 34 weeks of pregnancy. Detected under ultrasound, the fetus has been able to freely control the opening and closing of the eyes, can see the scene in the womb, the fetus has thick hair, in addition to being able to listen to and recognize some of the music often listened to; 3. Survivability: the fetus at this time has a certain degree of survivability, the fetal lungs at 32-33 weeks of gestation are slightly less mature for survival, and may need ventilator-assisted breathing if delivery. Newborns delivered after 34 weeks of gestation generally do not need to be on a ventilator, but need to live in an incubator and be monitored. In order to ensure the development of the fetus, it is recommended that pregnant women in the 8th month of pregnancy still need more rest, avoid straining, prevent preterm labor, have a reasonable diet and have regular maternity checks. Seek medical attention promptly if you have symptoms of abnormal fetal movement, abdominal pain or bleeding.