An enlarged gallbladder found on ultrasound while the fetus is in the mother’s womb is not a diagnostic criterion because it is normal if the gallbladder can be seen while the fetus is in the mother’s womb on ultrasound, and at this time the gallbladder will increase and decrease in size as the child breathes. You can have the ultrasound rechecked in the next month, if the size of the gallbladder is normal, there is no need to worry. During pregnancy, the mother’s metabolism increases and secretes more bilirubin, which will also affect the size of the child’s gallbladder, but it will not affect the child much at this time.