Introduction: when the pregnancy reaches four months, the gender of the fetus is also gradually revealed. So, what does the ultrasound sheet picture of four months pregnant with a boy actually look like? Let's find out together.

1, four months pregnant, the fetus is about 16 centimeters long from head to hand buttocks and weighs about 110 grams. I compared it to my maternity ultrasound sheet at the time, and it was in that range oh so well.

2, the fetus has begun to breathe in the womb, which is manifested in the form of hiccups, the fetus's legs are longer than its arms, and its fingernails have been shaped.

3. The reproductive organs of the fetus have been formed, and the sex of the fetus can be discerned by ultrasound, but usually doctors do not check the sex directly.

4. The internal organs and brain system of the fetus are beginning to differentiate, and the five senses have been formed, getting closer and closer to a human being, but still with a big head and a small body. At the same time, the appearance of the placenta and umbilical cord means that the mother and baby are very closely connected.

5. The fetus will grow rapidly in the fourth month, its eyes begin to focus forward and look more beautiful, and its bones have formed cartilage and are gradually hardening.

6. The fetal brain begins to partition and various sensory systems begin to develop. At this time, the retina of the fetus also begins to form, and the baby is now a molded little person.

Key tip: the baby grows day by day in the mother's stomach, every kind of change is a surprise to the baby moms, surrounding friends and relatives are increasingly keen to guess the birth of a boy or a girl, through the four-month ultrasound picture to determine the sex of the fetus is not entirely accurate, only the baby was born, is a man or a woman to see.