18 month old toddler developmental milestones
18 month old toddler developmental milestones
Your toddler is 18 months old—officially a year and a half! From newfound independence to adorable expressions, your toddler is growing in leaps and bounds. Let’s celebrate their achievements, prepare for exciting new stages, and ensure their health and development stay on track.
Your toddler is 18 months old—officially a year and a half! From newfound independence to adorable expressions, your toddler is growing in leaps and bounds. Let’s celebrate their achievements, prepare for exciting new stages, and ensure their health and development stay on track.


Author
Dahlia Rimmon, RDN
Content Writer


Medically reviewed by
Dr. Ali Alhassani
Pediatrics and Sleep Training Expert



3 Things You’ve Likely Seen This Month
They’re on the move! 🏃♂️
Walking, running, and climbing have become second nature as your toddler’s gross motor skills take off.
Words are flowing 🌊
Expect your toddler to have a vocabulary of 10–20 words (or more!), and they may even combine two words like “want cookie.”
Testing boundaries (and your patience)! 🧘
Your little one is exploring independence and testing limits—hello, mini tantrums! It’s all part of their emotional growth.
What’s Coming Up in Month 19?
Your toddler will add more words to their repertoire and start understanding two-step instructions like “Pick up your toy and bring it to me.”
Climbing Everything:
Expect them to conquer stairs, furniture, and anything else they can manage. Safety gates are a must!
Watch their imagination blossom as they mimic you by “cooking,” “talking on the phone,” or caring for dolls or stuffed animals.
Proactive Tip: Encourage language development by narrating daily activities, and introduce pretend play toys to spark their creativity.
Health Spotlight – The 18-Month Well-Child Visit
The 18-Month Well-Child Visit:
This important checkup includes:
Tracking growth (weight, height, and head circumference).
Checking developmental milestones like walking, language, and social interactions.
Discussion about sleep, eating habits, and safety as your toddler becomes more independent.
Vaccines:
At this visit, your toddler may receive the following vaccines:
DTaP (Diphtheria, Tetanus, and Pertussis) booster
Hepatitis A (if not already administered)
Proactive Tip: Use this visit to ask about managing tantrums, encouraging language development, and promoting healthy eating habits.
Need advice before the visit? Text a Summer Health pediatrician for personalized support anytime.
Parenting an 18-month-old is an exciting (and sometimes exhausting) adventure. Summer Health is here to support you every step of the way.
Curious about milestones? Get expert tips tailored to your child’s development.
Need strategies for tantrums? We’ll help you navigate this new stage with confidence.
Questions about eating habits? Get personalized guidance to ensure your toddler’s nutrition stays on track.
Ask a Pediatrician Now for answers to any of your questions!
Your toddler is growing into a confident, curious, and independent toddler, and you’ve been their greatest guide through it all. Keep celebrating each milestone, and know that we’re here to help every step of the way. Cheers to Month 19 and all the fun it will bring! 💛
3 Things You’ve Likely Seen This Month
They’re on the move! 🏃♂️
Walking, running, and climbing have become second nature as your toddler’s gross motor skills take off.
Words are flowing 🌊
Expect your toddler to have a vocabulary of 10–20 words (or more!), and they may even combine two words like “want cookie.”
Testing boundaries (and your patience)! 🧘
Your little one is exploring independence and testing limits—hello, mini tantrums! It’s all part of their emotional growth.
What’s Coming Up in Month 19?
Your toddler will add more words to their repertoire and start understanding two-step instructions like “Pick up your toy and bring it to me.”
Climbing Everything:
Expect them to conquer stairs, furniture, and anything else they can manage. Safety gates are a must!
Watch their imagination blossom as they mimic you by “cooking,” “talking on the phone,” or caring for dolls or stuffed animals.
Proactive Tip: Encourage language development by narrating daily activities, and introduce pretend play toys to spark their creativity.
Health Spotlight – The 18-Month Well-Child Visit
The 18-Month Well-Child Visit:
This important checkup includes:
Tracking growth (weight, height, and head circumference).
Checking developmental milestones like walking, language, and social interactions.
Discussion about sleep, eating habits, and safety as your toddler becomes more independent.
Vaccines:
At this visit, your toddler may receive the following vaccines:
DTaP (Diphtheria, Tetanus, and Pertussis) booster
Hepatitis A (if not already administered)
Proactive Tip: Use this visit to ask about managing tantrums, encouraging language development, and promoting healthy eating habits.
Need advice before the visit? Text a Summer Health pediatrician for personalized support anytime.
Parenting an 18-month-old is an exciting (and sometimes exhausting) adventure. Summer Health is here to support you every step of the way.
Curious about milestones? Get expert tips tailored to your child’s development.
Need strategies for tantrums? We’ll help you navigate this new stage with confidence.
Questions about eating habits? Get personalized guidance to ensure your toddler’s nutrition stays on track.
Ask a Pediatrician Now for answers to any of your questions!
Your toddler is growing into a confident, curious, and independent toddler, and you’ve been their greatest guide through it all. Keep celebrating each milestone, and know that we’re here to help every step of the way. Cheers to Month 19 and all the fun it will bring! 💛
Summer Health offers fast and reliable pediatric urgent care through online doctors, all via text. Whether you’re worried about your baby's fever, rashes, or other children's health concerns, we provide expert advice and support anytime, right from your phone.
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