12 Months

Happy 1st Birthday.

A year ago, they were just a little peanut. Today you know them better than anyone. They have a personality, preferences, and a laugh that’s probably the favorite sound in your house. They might be walking, might be talking … either way they’re your toddler now and not a baby anymore.

How are you celebrating the most important year of your life so far?

Your visit at a glance

What we’ll do

• Measure weight, length, head circumference
• Physical exam
• Vaccines
• Whole milk transition conversation, bottle weaning plan if applicable

Vaccines today

• First MMR (Measles, Mumps, Rubella)
• Varicella (Chickenpox) vaccine
• First Hepatitis A vaccine
• Plus flu if it’s flu season and they’re due

Screenings we’ll review

• Development
• Parental wellbeing
• Hemoglobin to check iron intake if not done at 9 months
• Lead screening
• TB risk assessment (if applicable).

Bring with you: Questions about the whole milk transition, sleep, picky eating, walking, and anything else on your mind. A comfort item for after shots. Your top 3 questions. And bring stories from the year. We love hearing them.

A quick note on today’s MMR: It’s possible for some babies to develop a mild fever and a faint rash 7 to 10 days after the MMR, not on the day of the shot but a week or so later. This is a known delayed reaction to a live attenuated vaccine and is not concerning unless the fever is high or your child looks unwell, which is extremely rare.

What’s happening at this age

Body

• Walking or close to it. The range for walking is 9 to 17 months
• First 8 baby teeth usually in by 14 months
• Picky eating can start
• Using their pincer grasp with confidence, very interested in feeding themselves

Brain

• Says “mama” and “dada” with meaning
• Understands “no” (pauses or stops, at least sometimes)
• Waves bye-bye and plays games like pat-a-cake
• Looks for things they watched you hide
• Loves dropping objects into a container then dumping them out

Behavior

Tantrums may begin in the next few months. It’s a developmental milestone, not a behavior problem (more below).

🌿 Mind / Body / Spirit, for your keiki

🌟 What do I need to know about the MMR vaccine?

The MMR vaccine prevents three serious diseases. Measles is one of the most contagious diseases on earth and is making a comeback in undervaccinated communities across the U.S., with travel-related cases reaching Hawaiʻi and the virus showing up in our wastewater in the last year. Closer to home, Hawaiʻi’s kindergarten MMR rate has slipped to about 90 percent, under the 95 percent a community needs to stop measles from spreading.

The autism question has been studied more than almost any vaccine question in history. The original 1998 paper claiming a link was withdrawn. The author lost his medical license for fraud. More than 25 large studies since have found no link between MMR and autism. The science is settled, but the fear is still there, understandably. Toddler regressive autism is often first noticed between 12 and 18 months, which is also when MMR is given, and human brains see patterns in coincidences. The timing is coincidence, not cause. If you have questions, ask us today. We’re happy to sit with you and look at the evidence together. For a deeper dive, immunize.org has a thorough summary.

How do I toddler-proof my house?

The babyproofing pass you did at 9 months covered crawler-level risks. Walking raises everything up about 18 inches. New things to check: stove knobs (covers help), pot handles (turn them inward), tablecloth edges (a toddler can pull a hot dish onto themselves), blind cords (strangulation risk, replace with cordless if possible), TVs and dressers (tip-over risk if not bolted to the wall), and door access to outside, pools, and stairs.

For room-by-room walkthroughs, the Nemours childproofing article and Boston Children’s babyproofing guide are both solid. We talk about water safety specifically in the Family & Community section.

How do I transition my baby to other milk, and when do I stop the bottle?

After 12 months, the recommendation is whole cow’s milk (or a fortified alternative if there’s a medical reason, here’s info on milk alternatives). Cap is 16 to 24 ounces of milk per day. More than that fills them up and crowds out solids, which can lead to iron-deficiency anemia. The CHOP guide to making the switch to cow’s milk walks through the practical mechanics.

The bottle is the other half of this conversation. Start phasing it out between 12 and 18 months. Use a straw, sippy, or open cup in its place. Bottles past 18 months are linked to dental decay and iron deficiency, so it’s good to plan the transition sooner than later.

How do I support my toddler’s development?

They’re learning through play! This age is for language explosions. Toddlers learn language through play more than structured teaching. Read together, name things during diaper changes, narrate the day, then repeat. Play also grows their imagination, and watching that creativity come alive is so fun at this age.

Sing in any language you speak. Multilingual exposure now is one of the greatest gifts you can give. For more on language specifically, see Child Mind Institute on expanding toddler language skills, and learningthroughplay.com has ongoing play ideas.

What should a typical day of eating look like for my 12 month old?

Check out this sample menu for feeding at 12 to 15 months. With whole milk now in the picture and solids taking the calorie lead, daily meals look more like adult meals. Three meals, two snacks, at the table with you whenever possible. Variety still matters more than volume.

Picky eating may start now. The best response is to keep offering variety without pressure. “You don’t have to eat it” is a more powerful sentence than “just take one bite.” The adventurous eaters 12-15 month handout continues the work from the 9-month visit if you want a refresher.

Milestones Check-In

CDC Milestone Tracker: 12-month milestones. Check out your child’s progress in the app, and don’t forget Pathways.orgis another great development tool.

💗 Family / Community, for you and your ʻohana

🌟 How do we celebrate and honor this first year?

Planning a first birthday lūʻau (or whatever celebration fits your ʻohana) is a real milestone. The Hawaiian baby lūʻau celebrates surviving the first year. Historically that survival was its own miracle, and the first lūʻau gathered the community to honor it. The meaning still holds: you all made it through. Whether you throw a full lūʻau, a backyard gathering, a cake smash, or a quiet reflection with your child, this milestone is worth marking.

Are my toddler’s tantrums normal?

Tantrums usually start somewhere in the next 3 to 6 months. Why? They’re the developmentally appropriate result of a toddler discovering they have a will, paired with not yet having the language or emotional regulation skills to cope when that will is thwarted.

Strategy: stay calm (you’re their emotional regulator until they can do it themselves), name what’s happening for them (“you wanted the cookie and I said no and that’s so hard”), don’t try to teach the lesson during the meltdown (toddlers can’t learn while dysregulated), wait it out, repair afterward. We’ll go deeper at the 15-month and 18-month visits.

Resources: Many families like practical, brain‑based books such as How to Talk So Little Kids Will Listen, No Bad Kids, or No‑Drama Discipline for help with tantrums, limits, and big feelings in toddlers.

How can I keep my toddler safe around water?

Drowning risk takes another jump now. Walking toddlers are fast, curious, and have zero understanding of water depth. Around any water (pool, ocean, tide pool, bathtub, even a bucket): your eyes on them, within arm’s reach, every second. No swimming aids can substitute.

Families may explore formal water competence programs (ISR-trained instructors on Oahu, Aqua Babies Hawaii, the YMCA) that can teach a toddler to roll to a back-float, which is a real survival skill, but not a replacement for supervision, of course. More on water safety from Hawaii Water Safety Coalition and YMCA Water Safety Resources.

Your wellbeing is still part of every visit

Parent wellbeing at 12 months: you made it through year one. The first year runs on adrenaline and the kindness of people checking in, and both tend to fade by now. The “how are you doing” texts slowed down, but the work remains. Often the feelings you didn’t have time to feel in the newborn fog finally surface, and you might have enough breathing room to notice you don’t feel like yourself.

Signs worth attention: exhaustion that sleep doesn’t fix, irritability or rage that catches you off guard, resentment or numbness where there used to be joy, pulling away from your partner or friends, losing track of what you enjoy, harsh self-criticism, or a low mood that won’t lift a full year in. Perinatal mood and anxiety disorders (PMADs) can persist through the first year or show up for the first time now, and the “wait and see” window has closed.

What helps at this stage: therapy as maintenance, not just crisis care. Honest conversations with your partner about who carries what, the invisible load included. Real friendship, not just texting. Time to yourself without guilt. Movement and sleep when you can get them. If you’ve been pushing through and still don’t feel like you a year in, call. You deserve to feel like yourself again.

Crisis resources: 988 (call or text), Hawaiʻi CARES 808-832-3100, Postpartum Support International 1-800-944-4773 (they support beyond the postpartum year). You don’t have to wait for a crisis to seek support.

Local Oʻahu resources 🌺

🌺 Hawaii Early Intervention

Free, statewide birth-to-3 services to support your child’s development. If anything about your child’s development has been on your mind (motor skills, language, social engagement, sensory challenges, anything), this is the call to make. You don’t need a diagnosis to refer. The evaluation is free, services are free if eligible, and earlier is always better.

🌺 Parent-child classes on Oʻahu

Now that your toddler is mobile and engaged, structured parent-child classes can be wonderful. A few options that work well at this age: Honolulu Waldorf School parent-child class, Music Together Honolulu (music and movement), library programs at most HSPLS branches, and YMCA Hawaii parent-child programs. Pick what fits your schedule and your kid. None of these are required, but all of them are fun.

True at every age

Some things never stop mattering, no matter the age on this page:

• Dental care: first visit by age 1 (or within 6 months of the first tooth), then every 6 months.
• Water safety. In Hawaiʻi it’s a year-round priority at every age.
• Sun protection, every day, even when it’s overcast.

🚨 When to call us

For a toddlers, call us right away (or go to the ED) for any of these:

• Fever with your toddler looking unwell, lethargic, dehydrated, or not feeding. Number matters less now than how they look.
• 7 to 10 days after MMR: a mild fever and faint rash is expected and not concerning. A high fever (104°F or higher) or a baby who looks genuinely unwell is. Call if you’re unsure.
• Same-day post-vaccine reactions: fever ≥104°F, inconsolable crying 3+ hours, breathing problems, swelling beyond the injection site.
• After a new food: hives, vomiting, swelling, breathing changes, or any reaction that looks “off.”
• A choking event, even a brief one with full recovery.
• A fall from any height (now including standing height) that ends with a head bump, loss of consciousness, or any seizure-like movement.
• A drowning event of any duration, even a brief one with full recovery. We always want to see your child after.
• Refusing all feeds for 12+ hours, or signs of dehydration (no wet diapers in 8+ hours, sunken eyes, lethargy).
• If your toddler has stopped doing things they were doing. No more words, no more pointing, no more eye contact. Loss of skills always warrants a call.
• Your gut says something is wrong. Call. That’s what we’re here for.

📞 Call us when you need us: 808-600-2180

During office hours, you’ll reach our team. After hours, call the same number and select option 1 for our after-hours line (Hello Pediatrics), who follow our medical protocols.

For anything life-threatening, call 911.

What’s ahead before your 15-month visit

The 12 to 15 month stretch is short but packed. Three things to expect:

If your child is walking already, it’ll get faster and smoother. If they’re not yet, expect first steps somewhere in this window; by 15 months almost all babies are walking with support. Climbing starts too, often before you’re ready. Things they couldn’t reach a week ago will suddenly be in their hands.

Words start coming alongside the walking. A first vocabulary of 5 to 20 words is normal by 15 months. They’ll understand many more words than they say. Following one-step instructions becomes reliable. “No” emerges in full force. They’re practicing autonomy, and “no” is the first available tool.

If you’ve started phasing out the bottle, this window is where you finish by offering whole milk and water in cups instead. Between 12 and 18 months, sleep often shifts from two naps to one. Don’t force it, just watch their cues.

At the 15-month visit we’ll do another big developmental check, give a few vaccines, and talk in depth about tantrums and toddler behavior since by then you’ll totally be in it. Message us anytime in between.

Until then, watch your toddler go. Their brain is a sponge soaking up the world around them.