Question: how to tell the difference between male and female ultrasound?
Answer: Flow of urine: The flow of urine can sometimes be spotted in a fetus. If it is moving upward, then it is more likely a boy. Male genitalia: Often be seen by weeks 18 to 20, the presence of male genitalia, including testicles, scrotum, and penis, is the irrefutable sign of male gender.