The lungs continue to develop. Now the baby is already falling asleep and waking up. Vellus hairs appear on the skin, the skin becomes wrinkled and covered with grease. The cartilage of the ears and nose is still soft.
Lips and mouth become more sensitive. The eyes develop, open slightly and can perceive light and squint from direct sunlight. In girls, the labia majora do not yet cover the labia minora, and in boys, the testicles have not yet descended into the scrotum. The weight of the fruit reaches 900–1200 g, and its length is 350 mm.
9 out of 10 children born at this stage survive.