At 22 weeks of pregnancy, your baby looks like a tiny, lean newborn, roughly the size of a papaya. From head to heel, the baby measures about 10 to 11 inches long and weighs around 1 pound. Every major body part is in place, but the baby is still very thin because fat hasn’t started accumulating under the skin yet.
Skin, Hair, and Overall Appearance
The most striking thing about a 22-week baby is the skin. It’s wrinkled, reddish, and still partially see-through, thin enough that blood vessels and some underlying structures are visible beneath the surface. The baby won’t start filling out with body fat for several more weeks, so the skin hangs loosely on a small frame, giving it a distinctly aged, delicate look.
The entire body is covered in a fine, downy hair called lanugo. This soft fuzz isn’t permanent; it serves a practical purpose by helping hold a greasy, cheese-like coating (vernix) on the skin. That coating started forming around week 19 and acts as a protective barrier against the amniotic fluid your baby floats in all day. Together, the lanugo and vernix give the skin a slightly waxy, coated appearance.
Facial Features
By 22 weeks, your baby’s face is remarkably well-defined. Eyebrows and hair on the head are now visible. The eyes are fully formed, though the eyelids remain fused shut and won’t open for a few more weeks. The nose, lips, and ears are all clearly shaped and proportioned more like a newborn’s face than the flatter profile seen in earlier ultrasounds. The mouth can open and close, and your baby regularly swallows amniotic fluid as practice for feeding after birth.
If you have an ultrasound around this time (many anatomy scans happen between weeks 18 and 22), you can typically see the eye sockets, nose, and mouth in detail. The technician can check the facial structures from multiple angles. Fingers and toes are fully separated, and the hands open and close. Some imaging centers will also let you know the baby’s sex at this stage, since the genitalia are developed enough to identify.
Body Proportions
At this point, the baby’s head is still large relative to the body, but the limbs have caught up considerably compared to the first trimester. Arms and legs are proportional enough that you can see them bending and flexing on ultrasound. The fingers are tiny but complete, with soft nails forming. The baby’s overall proportions are starting to resemble what you’d expect at birth, just much thinner and smaller.
Movement You Can Feel
Most people have started feeling fetal movement by 22 weeks, though the sensations are still subtle. Kicks at this stage often feel like flutters, swishes, rolls, or light jabs, sometimes described as butterflies. The baby is small and not very strong yet, so these movements can be easy to miss during a busy day. You’re more likely to notice them after eating a meal (the rise in blood sugar tends to increase activity) or in the evening when you’re lying still. Babies also tend to be more active at night, possibly because your daytime movement rocks them to sleep.
Inside the womb, your baby is doing much more than kicking. At 22 weeks, the grip reflex is developing, and the baby will grab at the umbilical cord or touch its own face. These aren’t random twitches; they’re part of how the nervous system practices coordinated movement.
Brain and Sensory Development
Week 22 marks a significant turning point for brain development. This is when post-migration neuronal development begins, a phase where the brain’s cortex starts maturing, nerve cells sprout branches (axons and dendrites), and the earliest connections between brain cells form. This process, which continues well into infancy, is the foundation for everything from sensation to thought.
Your baby can already detect sound. Fetal responses to sound have been recorded as early as 16 weeks, well before the ear is fully mature. By 22 weeks, the baby responds to external stimulation in measurable ways. Research has shown that when a mother speaks, her baby tends to become quiet and still, a response that looks like focused listening. When a mother touches her abdomen, the baby responds differently, with more arm, head, and mouth movements. These reactions suggest the baby is not only sensing stimuli but processing them differently depending on the type.
Lung and Organ Development
While the baby looks increasingly like a newborn on the outside, the internal organs are still catching up. The lungs are one of the last major organs to mature. Around week 22, the lungs begin producing surfactant, a mixture of proteins and fats that coats the tiny air sacs and prevents them from collapsing. This process is only just starting, and it takes several more weeks before surfactant levels are sufficient to support breathing outside the womb. This is the single biggest challenge for babies born extremely early.
Other organs are further along. The heart has been beating since the first trimester and is now pumping blood efficiently. The digestive system is practicing with swallowed amniotic fluid. The liver and kidneys are functioning, though not yet at full capacity.
Survival if Born at 22 Weeks
Twenty-two weeks sits right at the edge of what medicine calls the “threshold of viability.” A baby born at this stage faces enormous challenges, primarily because the lungs and brain are so immature. Survival rates vary widely depending on the hospital’s level of neonatal intensive care. A large study of babies born at 22 weeks in Korea found an overall survival rate of about 17%, but that figure jumped to 50% in hospitals with the highest-quality neonatal units. Nearly all babies born at this age require immediate breathing support, with over 96% receiving assisted ventilation.
The quality of care available and whether certain treatments (like steroid injections given to the mother before delivery to accelerate lung development) were administered beforehand make a significant difference. Prenatal steroid therapy was associated with a 42% reduction in the risk of death for these extremely premature infants. Survival at 22 weeks is possible, but it requires the most advanced medical intervention available, and outcomes remain highly uncertain.
What You See on Ultrasound
On a standard 22-week ultrasound, you’ll see a baby that looks recognizably human. The profile view shows a forehead, nose, lips, and chin. You can watch the baby move its arms and legs, open and close its hands, and sometimes yawn or suck a thumb. The technician will measure the head, abdomen, and leg bones to check growth, and will examine the heart’s four chambers, the spine, the kidneys, and the brain structure. The level of detail visible at this stage is why many providers schedule the detailed anatomy scan right around this window.
For parents, this ultrasound is often the first time the pregnancy feels real in a visual, concrete way. The baby no longer looks like an abstract blob on screen. It looks like a small, skinny person, curled up and active, with a face you can study and movements you can watch in real time.