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16-24 Months
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Congratulations—your toddler is growing fast!
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Every day, your toddler is exploring, playing, and learning—and becoming more independent. As your toddler becomes more active, routine checkups are a chance to track their progress and catch any delays early, help adjust routines, and ensure your child receives the final doses of recommended vaccines that help protect them against preventable diseases.
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Every vaccine dose is important for optimal protection
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By 24 months, your toddler should typically complete the full dosing series of most recommended routine vaccines for babies, including pneumococcal conjugate vaccine (PCV), which is usually completed at 12 or 15 months. Completing every recommended dose provides your child with the best protection possible from each vaccine.
If you missed a dose, it’s okay—it’s not too late to get back on track. Bring it up with your pediatrician at your next checkup, because every dose matters. Take a look at the CDC-recommended vaccine schedule below.
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The CDC website is neither owned nor controlled by Pfizer. Pfizer does not endorse and is not responsible for the content or services of this site.
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What to expect at routine checkups during this stage
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18-month checkup
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From pretend play to big emotions, this stage is full of growth. Your pediatrician will check in on key speech, social, and motor skills.
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This is not a complete list. Please speak with your baby’s doctor if you have questions on what screenings or vaccinations to expect. Additionally, every baby develops at their own pace. The milestones listed are general guidelines. If you have any questions or concerns about your baby’s development, please consult your pediatrician.
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Vaccinations
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- Ask your baby’s doctor if there are any vaccines to catch up on from previous checkups
- Second dose of hepatitis A vaccine (HepA)
- Catch-up vaccines:
- May be given if any earlier doses were missed
- Additional vaccines:
- Influenza (flu), if in season
- COVID-19, if eligible and recommended
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Developmental milestones
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- Walks up steps with 2 feet per step with hand held
- Uses 6 to 10 words (other than names)
- Turns, looks at adult if something new happens
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Additional screenings
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- Growth and behavior checks
- Autism specific screening
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Discussion topics and tips
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- Ask about discipline, sleep, and social behaviors
- Practice setting rules and limits
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24-month checkup
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Your child is now 2—and likely full of personality. This visit checks progress on speech, mobility, and independence.
disclaimer
This is not a complete list. Please speak with your baby’s doctor if you have questions on what screenings or vaccinations to expect. Additionally, every baby develops at their own pace. The milestones listed are general guidelines. If you have any questions or concerns about your baby’s development, please consult your pediatrician.
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Vaccinations
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- By the 24-month checkup, babies will have completed several of the first series of recommended vaccines. Some vaccines will need additional doses between ages 4 and 6
- Catch-up vaccines:
- May be given if any earlier doses were missed
- Additional vaccines:
- Influenza (flu), if in season
- COVID-19, if eligible and recommended
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Developmental milestones
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- Uses 2-word phrases
- Jumps and climbs
- Plays alongside other children (i.e., parallel play)
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Additional screenings
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- Growth check and physical exam
- Autism and social-emotional screening
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Discussion topics and tips
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- Discuss potty training, screen time, and routines
- Ask about next steps before the 3-year visit
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Routine checkups help you stay on track
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Your baby’s checkups are key to staying ahead of their health and development. Keep learning what to expect at every checkup so you can show up informed and prepared.