What is the baby's development standard at five months of pregnancy?

What are the development standards for a baby at five months of pregnancy? This is a question that many parents are curious about, because the baby grows in the mother's belly, and mothers are of course very concerned about the growth of their own flesh and blood. Generally speaking, the baby will show different growth and development marks every month or even every day. What are the development standards for a baby at five months of pregnancy? Let’s take a look at the relevant introduction below.

Changes in the fetus during the fifth month of pregnancy

The fifth month of pregnancy is from 17 to 20 weeks. During this stage, the fetus grows rapidly and changes significantly. At the 16th week of pregnancy, the fetal skin becomes rosy and transparent, and subcutaneous blood vessels can be seen; the baby's gender can be identified based on the external genitalia (with the help of ultrasound); the respiratory muscles begin to move; one month later, the skin gradually turns dark red and becomes opaque, and fetal hair, eyebrows, and nails begin to grow. The subcutaneous fat of the fetus during this period makes the skin appear thin; the head is relatively large, with a circumference of about 17.6 cm, the size of an egg, and about 1/3 of the body length; the bones and muscles are stronger than before, and the activity of the limbs is enhanced, so the mother can feel the fetal movement. During this period, the normal fetal heartbeat gradually becomes stronger, with a fetal heart rate of 120 to 160 beats per minute. After 18 weeks, the fetal heartbeat can be heard through the mother's abdominal wall with a stethoscope. At the same time, the fetus can also hear stronger external sounds, so fetal education can be carried out. During this period, the normal fetus is about 18-27 cm long and weighs about 250-300 grams. At this time, the fetus already has the ability to swallow and urinate.

The developmental standards of a baby at five months of pregnancy is a very common issue. Many mothers are very concerned about the growth of their babies. Babies at this time are very fragile and can easily develop some diseases due to external influences. Therefore, it is very necessary for mothers to have a detailed understanding of the developmental standards of the fetus at five months of pregnancy.