Most of the things that worry new parents in the first few weeks are completely normal. Newborns do strange things: they breathe in odd patterns, lose weight, break out in rashes, and cry for hours with no clear cause. If you’ve typed “is it normal for a newborn to…” into a search bar, you’re in good company. Here’s a practical guide to the behaviors and changes that look alarming but are a routine part of early life.
Weight Loss After Birth
Nearly all newborns lose weight in the first few days. A loss of up to 8 to 10 percent of birth weight is considered normal. For a baby born at 8 pounds, that means dropping close to 13 ounces before things turn around. Most babies hit their lowest weight around day three or four, then start gaining steadily. By about two weeks, the majority are back to their birth weight or above.
If your baby is feeding well and producing wet diapers, early weight loss isn’t a sign that anything is wrong. It reflects the natural shedding of extra fluid carried over from the womb.
Sleep That Seems Excessive (or Chaotic)
Newborns sleep roughly 16 to 17 hours a day, but they rarely sleep more than one or two hours at a stretch. That combination surprises many parents: the baby seems to sleep all the time, yet no one in the house is getting any rest. This pattern exists because a newborn’s stomach is tiny and needs frequent refills, so sleep comes in short, scattered bursts around the clock with no real distinction between day and night.
By about three to four months, most babies begin consolidating sleep into longer nighttime stretches. Until then, the choppy schedule is biologically normal, not a sign of a sleep problem.
Breathing Pauses and Fast Breaths
Newborns don’t breathe the way adults do. A pattern called periodic breathing is common in the first months of life. Your baby takes several quick, shallow breaths, then pauses for five to ten seconds, then starts breathing again on their own. This cycle can repeat for minutes at a time, especially during sleep.
Periodic breathing happens because the brain’s respiratory control center is still maturing. It looks frightening, but pauses under 10 seconds that resolve on their own, with no color change or limpness, are well within the range of normal. What’s not normal: pauses longer than 20 seconds, blue or gray skin color around the lips, or a baby who needs to be stimulated to start breathing again.
Crying That Peaks Around Two Months
Babies typically start crying more at about two weeks old, with the peak hitting around two months. Some babies cry for up to five hours a day during this peak, often concentrated in the late afternoon or evening. By three to five months, the crying generally tapers off.
This pattern holds even for healthy, well-fed babies with no medical issues. It’s sometimes called the “Period of PURPLE Crying” because it follows a predictable arc. The crying can feel relentless, but it doesn’t mean your baby is in pain or that you’re doing something wrong. Holding, gentle motion, and white noise help some babies. Others simply need to cry through it. The key marker to watch is whether the baby is feeding normally and gaining weight between crying episodes.
Diaper Patterns That Keep Changing
Stool frequency varies a lot depending on how a baby is fed. During the first month, breastfed babies average about five bowel movements per day, while formula-fed babies average closer to two. By the second month, breastfed babies slow down to about three per day, and formula-fed babies to about one or two.
Breastfed babies are also more likely to go through stretches of infrequent stools. About 28 percent of breastfed infants will have at least one period of going several days without a bowel movement, compared to about 8 percent of formula-fed babies. As long as the stool is soft when it does come and the baby seems comfortable, this is not constipation. The color of stool also shifts in the first week, from black (meconium) to green to yellow, which is a normal transition.
Rashes That Appear and Vanish
Up to half of all full-term newborns develop a blotchy rash called toxic erythema (the name sounds scary, but it’s harmless). It typically shows up in the first few days after birth, sometimes as late as two weeks. The rash looks like red splotches with small white or yellowish bumps at the center, and individual spots rarely last more than a day. The whole thing waxes and wanes over several days and resolves on its own without treatment.
Premature babies get it less often. The rash doesn’t itch, doesn’t spread to others, and doesn’t need any cream or ointment. If a rash is accompanied by fever, blistering, or pus, that’s a different situation worth having checked.
The Startle Reflex
Newborns fling their arms out, arch their backs, and sometimes cry in response to sudden noise, movement, or even their own twitching. This is the Moro reflex, a primitive reflex present from birth. It can be dramatic enough to wake a sleeping baby, which is one reason swaddling helps in the early weeks.
The Moro reflex typically fades by six months as the nervous system matures and the baby develops more voluntary control over movement. If it persists well beyond six months, or if it only appears on one side of the body, that’s worth mentioning at a checkup.
Jaundice and Yellow Skin
A yellowish tint to the skin and eyes is one of the most common findings in newborns. It happens because babies produce more of a pigment called bilirubin than their immature livers can process. Some degree of jaundice is expected and resolves as the liver catches up, usually within the first one to two weeks.
Mild jaundice doesn’t require treatment. When bilirubin levels climb higher, babies may need phototherapy, which involves lying under special blue lights that help break down the pigment through the skin. The thresholds for treatment aren’t a single number; they depend on the baby’s age in hours, gestational age, and risk factors. Your baby’s levels will be checked before hospital discharge, and pediatricians monitor for jaundice at early follow-up visits. Jaundice that appears after the first week, deepens rather than fades, or is accompanied by poor feeding and excessive sleepiness warrants prompt evaluation.
The Umbilical Cord Stump
The stump of the umbilical cord usually falls off one to three weeks after birth. In the meantime, it dries out, shrinks, and changes color from yellowish-green to brown to black. This progression looks unpleasant but is entirely normal.
A tiny amount of bleeding when the stump separates is common, similar to what happens when a scab comes off. You might also see a small spot of blood if the stump catches on clothing or the edge of a diaper. Keep the area dry, fold the diaper below it, and let it fall off on its own. Signs of infection, which are uncommon, include redness spreading onto the surrounding skin, swelling, foul-smelling discharge, or the baby developing a fever.