Questions to Ask at Your Baby's 4 Month Check Up
By the four month check up, sleep has often just come apart, the baby is trying to roll, and somebody in the family has started asking about solid food. The questions here take on each of those, in the order a pediatrician or family doctor tends to work: growth and the exam, feeding and solids, sleep, milestones and teething, the shots and everyday illness, then safety at home and the weeks before six months. Nobody gets through all 49 in one appointment, so mark the ones that fit your baby and open with whichever has cost you the most sleep.
The questions
Each question, and why to ask it
Growth and exam
Is my baby still growing along the same curve as at the two month visit?
Why ask it
Have the weight, length and head measurements from birth onward put on the screen together, because today's dot is the one that turns a starting point into a trend. A line that has bent calls for the doctor's explanation and a decision on whether to book a weight check before six months.
Can you tell me what you are checking as you go through the exam?
Why ask it
The hips, the heart, the belly and the soft spot are often gone over in a minute of quiet. A running commentary costs the doctor nothing and tells you which problems were looked for and not found. When something gets a name, have it spelled out and find out whether it means a recheck at six months or a referral.
Is the flat spot on the head evening out, and could a tight neck be part of why my baby always looks one way?
Why ask it
Say which side your baby turns toward in the crib, in the car seat and at the breast or bottle, because a preference that shows up everywhere points the doctor toward the neck. The answer should come with something to do at home, such as positions or stretches, and the point at which they would send you to a physical therapist. Whether a helmet ever comes into it, and at what age, is a question for this doctor: practice differs.
Feeding and solids
How many feeds in a day, and how much at each, would you expect for a baby this size?
Why ask it
Give your own numbers first, from a day you wrote down, and let the doctor say whether they sit where expected. With breastfeeding there is no volume to report, so the weight curve and the wet diapers stand in for it. The chart on the formula can is written for an average baby, and this answer is about yours.
When do you recommend starting solid food: now, at six months, or somewhere in between?
Why ask it
Official advice on the starting age differs between countries and has moved over the years, which is why a grandparent, a baby food label and your doctor may each say something different. Get this office's answer with its reasoning, including whether breastfeeding, formula or an early birth changes it. A reply of 'not yet' should come with what would make it a yes.
Which signs tell you a baby is ready for food, and which ones do parents mistake for readiness?
Why ask it
Watching you eat and waking more at night often get read as hunger for solids. Have the doctor list what they go by instead, such as holding the head steady, sitting with support and not pushing a spoon back out with the tongue. Then you can look for those at home and stop guessing from the calendar.
A relative keeps telling us to put cereal in the bottle so the baby sleeps longer. What is your answer to that?
Why ask it
This one is as much about family as feeding. Many pediatricians advise against it, and hearing your own doctor's reasons gives you a sentence to repeat at the next family dinner.
Given the eczema or the food allergies in our family, should peanut, egg and the other allergens be planned differently for our baby?
Why ask it
For some babies with severe eczema or a known food allergy, doctors plan the first tastes of peanut and egg with extra care, sometimes with testing beforehand. Raising it at four months means the plan exists before the food does. Skip this one if neither applies to you.
My baby pulls off the breast or bottle to look around after a minute. How do I make sure enough still goes in?
Why ask it
Distracted feeding is a common complaint at this age, when the room has become more interesting than the milk. The doctor may suggest feeding somewhere dim and quiet, feeding more often for less time, or simply trusting the weight. Say so if the daytime feeds have shrunk and the nights have filled up to match, because that changes the sleep advice too.
Should we carry on with vitamin D, and is this the age you start thinking about iron?
Why ask it
Say exactly what goes in: breast milk only, formula only, or a split, with rough amounts, because supplement advice turns on that and on national guidance. Some of that guidance brings iron in around four months for babies who are mostly breastfed. A yes needs the product, the dose and a date to stop or review it.
Is the spit-up easing on the timetable you would expect, or is it time to do something about it?
Why ask it
Describe it against two months ago: more, less or the same, and whether your baby seems bothered. A baby who brings milk up cheerfully and keeps gaining is a laundry problem in most doctors' eyes. Arching, refusing feeds or a stalled curve would change the conversation, so mention any of those plainly.
The dirty diapers have changed. How often should a four month old go, and what would you call constipation?
Why ask it
Have the last week's pattern ready: how many, what color, how soft. Some babies go several times a day at this age and others skip days, and the doctor can say where the edge of normal is for the way yours is fed. Two things to bring home: what to try first, and which color means a same-day call.
I am pumping at work and getting less than my baby drinks while I am gone. What are our options?
Why ask it
Bring the numbers: ounces per session, sessions per day and what the caregiver says the baby takes. The doctor may adjust the pumping, wonder whether the bottles are bigger than they need to be, or talk through adding formula. Many offices can refer you to a lactation consultant, though who pays for that visit depends on your insurance or health service.
Sleep
My baby was sleeping longer stretches and now wakes every two hours. Is this the four month sleep regression?
Why ask it
Give the before and after, with the date it changed and anything that arrived the same week: rolling, a cold, a new room, a parent back at work. A useful reply separates a change in how babies sleep at this age from hunger, illness or habit, and says which the doctor thinks you have. The part to pin down is what to do for the next few weeks, so that whatever you reach for in the middle of the night does not become the routine.
How much sleep should a four month old get across 24 hours, and how many naps is that?
Why ask it
Sleep charts online disagree with one another by hours, so have the doctor give the range they use and place your own tally from three ordinary days inside it. How long a baby this age can comfortably stay awake between naps is often the more usable number.
Every nap ends at 30 minutes. Is that just the age, or something we should work on?
Why ask it
Say where the naps happen, how your baby falls asleep for them and what mood they wake in. A doctor who is not concerned will usually tell you short naps are common now and roughly when they lengthen. Should the advice be to work on them, one change to try first is easier to judge than five.
How many feeds between bedtime and morning would you expect a baby of this weight to still need?
Why ask it
The figure on today's scale is what turns this from opinion into an answer, so ask after the weigh-in. Tell the doctor how many times your baby wakes and how many of those end in a full feed. The number you get back helps you tell a hungry waking from one that wants something else, and you are free to keep feeding at every one if that suits you.
My baby has started rolling. Does the swaddle go tonight, and how do we make the change?
Why ask it
Guidance in many countries is to stop swaddling once a baby shows signs of rolling, so describe exactly what you have seen, including half rolls onto the side. Find out what the doctor suggests in its place and whether to drop it all at once or one arm at a time.
If my baby rolls onto their front in the night, do I turn them back over?
Why ask it
Parents lose a lot of sleep to this one, checking the monitor every hour. The usual answer hinges on whether your baby can roll both ways unaided, so say honestly which directions you have seen. Go over what should and should not be in the crib while you are on the subject, since that matters more once a baby moves.
Our baby is getting too big for the bassinet. When do we move to the crib, and should it stay in our room?
Why ask it
Bassinets usually carry a weight limit and a line about rolling or pushing up, so photograph the label on yours and bring it. How long a baby should share the parents' room is one of the points where official advice varies, which makes this doctor's figure and reasoning the thing to collect. The first night in a new bed tends to be a broken one; choose it with that in mind.
Should we be putting our baby down awake yet, and at what age would you consider any kind of sleep training?
Why ask it
Doctors differ on this, and so do the books, so what you are collecting is this doctor's view and the age they attach to it. Rocking or feeding to sleep that still works for your family may need no change at all, and it is fair to say so. Where it has stopped working, the useful answer is the gentlest first step for a baby this young.
Some nights the baby ends up in our bed, or asleep on one of us on the sofa. Can we talk about that honestly?
Why ask it
A truthful account gets you better advice than the answer you think the doctor wants. Have them name the riskiest version of what you are doing and what they would change first. Where exhaustion is the cause, the plan should deal with the exhaustion too: who takes which shift, and when each of you sleeps.
Milestones and teething
What do you look for in a four month old, and which of those things did you see today?
Why ask it
You will usually hear about head control, pushing up on the arms, reaching, sounds and smiles. For a baby who came early, check whether the doctor is counting from the birth date or the due date, since that can move the expectations by weeks. A questionnaire filled in at the front desk deserves a result too: offices often file it without a word.
My baby has not rolled over yet, or did it once and stopped. Is there an age you would want to see it by?
Why ask it
Rolling arrives over a wide span of weeks, and plenty of babies do it once, startle themselves and wait a month. Describe what yours does on the floor: getting onto a side, pushing up, kicking over. A date from the doctor is more use than 'they all get there', because it tells you when to stop wondering and when to come back.
Tummy time still ends in tears after a couple of minutes. What counts toward it, and how much should we aim for now?
Why ask it
Time on your chest, over your lap or propped on a rolled towel counts for many doctors, so check what this one accepts. Have them watch a minute of it on the exam table, since how your baby holds the head and arms tells them more than your description can. A daily target in minutes, split however you like, is easier to follow than 'as much as possible'.
Should my baby be laughing, squealing and cooing back at us by now?
Why ask it
Tell the doctor what you hear and when: vowel sounds, a laugh, a back-and-forth where your baby waits for your turn. Add whether loud noises cause a startle and whether your voice gets a head turn, which is how a quiet baby leads to a question about hearing. If the newborn hearing screen was missed or needed a repeat, today is the day to chase it.
Is my baby reaching and grabbing the way you would expect, and does it matter that one hand does more of it?
Why ask it
Hand a toy over in the exam room and let the doctor watch both sides. Fists that stay clenched, or one arm that always leads, are details to say out loud even if they seem small. You are listening for either 'that is within what I see' or a plan to look again at a named age.
Do my baby's eyes follow and line up the way you would expect at four months?
Why ask it
Many doctors expect the occasional crossing of the newborn weeks to be settling around now, which makes this a fair day to have the eyes watched while they track a toy. Mention any moment you have seen one eye wander in or out, and bring a short video in case it never happens on cue.
Everything goes in the mouth and the drool soaks through three bibs a day. Is that teething, or simply the age?
Why ask it
Drooling and chewing on fists often show up around now whether or not a tooth is near, so have the doctor look at the gums and tell you which this is. A first tooth can still be months off, and knowing that saves you from blaming every bad night on one. While the chin is being looked at, get a name for something to put on the red, chapped skin the drool leaves there and on the neck.
What would you use for sore gums at this age, and which teething products do you tell parents to stay away from?
Why ask it
Bring the product you were given or tempted to buy, or a photo of its label, and have the doctor rule on it by name. Health agencies have issued warnings about certain numbing gels, teething tablets and amber necklaces, and this office will know which apply locally. Something cold to chew is a frequent first suggestion, so find out what they consider safe to chill and hand over.
We are thinking about a floor seat or an activity center. Is my baby ready for one, and how long is too long in it?
Why ask it
Name the exact product, because a doctor's opinion of a bouncer, a sit-up seat and a jumper can differ. The answer normally turns on head and trunk control and comes with a time limit per session.
What should we be doing with our baby during the awake stretches: toys, books, talking, or just the floor?
Why ask it
Expect a short list that costs nothing: talk face to face, a few things to grab and mouth, time on the back and on the front. Better still is the one item the doctor would pick from today's exam, such as more reaching practice or more time turned toward the less favored side. A television that runs in the background most of the day is worth mentioning here, to hear what they say.
Vaccines and illness
Which vaccines are due today, and are they second doses of the ones given at two months?
Why ask it
In many schedules the four month visit repeats most of the two month vaccines, but the list is set by country and sometimes by state or province, so have this office name what it gives. That includes how many injections it makes and whether one is taken by mouth. See that the record book or app is updated before you leave, since a daycare may want to see it.
Last time my baby was feverish and miserable the evening after the shots. Should we expect the same again?
Why ask it
Report exactly what happened after the two month round: the temperature, how long the fussing lasted, any swelling on the leg. That history is what the doctor will use to say whether today is likely to go the same way and whether anything should be done differently. A reaction that frightened you belongs here too, even if a nurse told you over the phone it was normal.
My baby has a cold today. Do we go ahead with the shots or come back?
Why ask it
Raise it before the nurse comes in with the tray, and say whether there has been a fever and how your baby is feeding. Offices have their own rule of thumb for which illnesses mean a delay, and it is theirs to apply. Shots that are put off need a catch-up booked at the desk, or the six month doses slide as well.
Where do you want me, and what can I do, while the injections are given?
Why ask it
Some offices have the parent hold the baby on a lap, some allow a feed during or straight after, and some offer a sweet solution on a pacifier. Your baby copes better when you know your job before the needle appears. A parent who would rather not watch can say so and hand the holding to the other adult.
After today's shots, what is normal for tonight and tomorrow, and what would be out of the ordinary?
Why ask it
Get it as two short lists: what to expect and ride out, and what earns a phone call. The first list needs a length in hours, so you know when 'still fussy' has gone on too long. Write down the after-hours number while you are at it; the evening is when you will want it.
What temperature counts as a fever now, and is the rule different from the one we were given for a newborn?
Why ask it
Many parents are told to treat any fever in the first weeks as urgent and never hear when that changes. You need the number, how the office wants it taken, and what matters besides the number: feeding, wet diapers, how alert your baby is. Have the answer cover both a fever after vaccines and one that comes out of nowhere, because the advice may differ.
If you are happy for us to use a fever reducer, what is the dose at today's weight, and how far apart?
Why ask it
Infant doses go by weight, and the weight was taken ten minutes ago, so this is the moment to have one worked out. Have the amount written in milliliters next to the strength printed on your bottle, since products come in more than one concentration. Two more things to settle: which medicines are not for this age yet, and whether a dose is wanted before any fever shows or only after.
Is anything seasonal due before six months, such as RSV protection, and when does a flu shot become an option?
Why ask it
What is offered, at which age and in which months changes from country to country and from one year to the next. Give the doctor the facts that decide it: the month your baby was born, whether there is daycare, and whether anyone at home has a health condition. Anything that falls between visits may need its own appointment, so check before you leave.
My baby has just started daycare and has had a runny nose ever since. Which symptoms need a visit, and which do we ride out?
Why ask it
The short list that means come in usually covers breathing, feeding, wet diapers and fever, and it helps to hear what trouble with each looks like in a baby this size. Find out what the doctor suggests for a blocked nose before feeds and sleep. The daycare will have its own rules on when a child has to stay home, and those are worth reading the same week.
The cheeks and the creases of the arms are dry and red. Is that eczema, and how should we look after the skin?
Why ask it
Bring the names of the soap, the laundry detergent and any cream you have tried, or photos of the labels. What you want is a daily routine and a separate plan for flare-ups, with the product named for each. Some offices link eczema to their advice on when allergenic foods start, so raise the two together.
Safety and next steps
Now that my baby rolls, kicks and grabs, what should we change around the house this week?
Why ask it
Babies of this age get hurt in ways a doctor sees over and over, and falls from beds, sofas and changing tables will probably come up before anything else. Walk through your own day out loud: where diapers get changed, where the baby is put down while you shower, what hangs within reach of the crib. One or two fixes named for your house beat a leaflet.
My baby mouths whatever is in reach. What is too small to leave nearby, and how do we handle an older child's toys?
Why ask it
Have the doctor give you a size test you can use at home, an everyday object to compare things against, and name the household items that worry them most at this age: coins, batteries, hair ties, pet food. With an older child in the house, the practical part is a rule about where small pieces live, and it lands better when the doctor says it in front of that child.
Is the infant car seat still fitted correctly now that my baby is longer and heavier?
Why ask it
A baby can outgrow the newborn insert and the lowest strap slots without anyone noticing. Bring the seat's manual or a photo of the label with its height and weight limits, and have the doctor show you where the straps and chest clip should sit now. Who inspects a seat, and what the rear-facing rule is, changes by country and state: get the local answer.
Can my baby wear sunscreen or insect repellent yet, and if not, how do we manage outdoors?
Why ask it
Take this office's answer over the label on the bottle, because guidance for babies under six months is not the same everywhere and has been revised. The practical version covers shade, clothing, hats, a net over the stroller, and what to do on a day when shade is not possible. Traveling somewhere hot or with mosquitoes can change the answer, so say where you are going.
Four months in I am still exhausted, anxious or flat. Is that something to raise with you, or with my own doctor?
Why ask it
Some pediatric offices screen parents at the well visits and some do not, so say it out loud even if no form was handed to you. Partners can ask this too. Leave with a name or a number and an idea of how quickly you can be seen.
What would you want a phone call about before the six month visit, and what can wait for it?
Why ask it
The standard handout answers this for every baby; have the doctor answer it for yours, given today's exam. Typical items are a change in feeding, a fever, or a skill that was there and has gone. Get the best route for the things in between as well: a nurse line, a portal message, or a photo by email.
What changes between now and six months, and what should we have ready for that visit?
Why ask it
The usual headlines are sitting with support, the start of solid food and, in many schedules, another round of vaccines. Find out what the doctor would like you to have tried or noticed by then, so the next appointment starts from your notes and not from nothing. Offices that fill up weeks ahead are best booked on the way out.
Making the four month appointment work for you
Practical guidance for the conversation itself
Getting ready for it
Write down two nights as they happen
Note each waking, what you did and how long it took to settle, on your phone at the time. At 3 a.m. every night feels like the worst one, and a doctor can do more with 'four wakings, two feeds, up for the day at 5:10' than with 'terrible'.
Look up what happened after the last shots
Scroll back through your messages or photos to the two month visit and find the evening after. The temperature you recorded, the dose you gave and how long the fussing ran are the first things the doctor will ask about when you raise today's vaccines.
List the advice you have been handed
By four months most parents are carrying a small pile of other people's rules: cereal in the bottle, an amber necklace, solids now because 'you had them at twelve weeks'. Write each one down the way it was said and read it out in the exam room. A ruling from the doctor settles more of these than your own opinion will.
Book around a feed and a nap
A four month old who is hungry or overdue for sleep will not track a toy or push up on the table. If the office gives you a choice of times, take the one that falls after a feed, and bring milk for the minutes after the injections.
In the exam room
Ask, show or tell
Mark each question as something to ask, something to show or something to tell. A head that always turns left is a show, a relative pushing cereal is an ask, and the baby ending up in your bed at 4 a.m. is a tell. Sorted like that, the visit stops feeling like a quiz you are giving the doctor.
Be exact about the rolling
Back to front, front to back, onto one side, once or every day: the answers about the swaddle, the bassinet and turning a baby back over at night all hang on which of these yours does. Parents round up out of pride and down out of worry. Say what you saw and how many times.
Write the weight down and reuse it
The weight taken at the start of the visit feeds three later answers: how much milk in a day, how many night feeds, and the amount of any fever medicine. Note it when it is read out and bring it up at each of those points, so that what you are told fits your baby and not the average one.
Ask for the reason along with the rule
On solids, night feeds and sleep training, two good doctors can give different answers. The reasoning is what lets you adapt the advice when your baby does something the plan did not cover, and it holds up better than 'the doctor said so' when someone at home disagrees.
Where the four month visit goes off course
Letting the regression take every minute
Bad nights are the loudest problem, so they can swallow the appointment. Give sleep a fair share and still get through growth, the exam findings and the vaccine plan, because those have no other slot before six months.
Leaving with 'soon' on solid food
'Soon' and 'when your baby is ready' send parents home to argue about it. Push for the signs the doctor goes by and an age to start trying, even if the answer is that it waits for the next visit.
Treating the second shots as a rerun
Parents whose baby sailed through the two month round tend to skip the vaccine questions this time, and parents who had a hard evening brace for the same again. Neither is a safe guess. Describe what happened last time and let the doctor say what, if anything, to do differently.
Pinning every rough night on a tooth
Drool and chewing can start weeks or months before a first tooth shows, and blaming teething can hide a cold, an ear problem or plain overtiredness. Ask what the gums look like today, and what else the doctor would check when a bad patch runs past a few days.
The evening and the weeks after
Log tonight for the six month round
Keep a note of the highest temperature, any medicine with the time it was given, and the hour the fussing stopped. You were asked for exactly this about the two month shots, and the same question is coming at six months.
Change the sleep setup the same day
If the doctor said the swaddle or anything in the crib has to go, do it that night while the reasons are fresh. A change put off until the regression passes tends to still be waiting when the baby rolls for real.
Give a sleep plan a set number of nights
Whatever was suggested for the wakings, agree with the other adult how many nights you will try it before judging, and write the number down. A plan abandoned at 2 a.m. on the second night tells you nothing about whether it works.
Put the readiness signs where you will see them
Copy the doctor's list of signs for solid food onto a note on the fridge, with the age they said to start looking. When a jar label or a relative announces that the baby is ready, you have something to check against that is not a birthday.