How old is the 22-week fetus?

22 weeks of fetal weight is about 450-500g, baby length is about 25-27cm. If the fetus is too large or too small, first check the gestational age, according to the early pregnancy B ultrasound measurement of the head and hip length to re-check the gestational age. After re-check the gestational age, if the fetus is still small to rule out whether it is caused by fetal abnormalities, chromosomal abnormalities and other special circumstances. The second trimester of pregnancy is the period of rapid fetal growth and development. The fetus of 22 weeks has shown swallowing, urination and other actions. It is recommended that pregnant women should strengthen diet nutrition, reasonably supplement protein, eat more fish and shrimp, drink milk and eat more bean products.