15 Months Milestones
Content reviewed against published CDC, WHO, AAP guidelines
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At 15 months, your toddler is becoming their own little person - with opinions, preferences, and a growing sense of independence. Development at this age can feel uneven: your child might be an early walker but a late talker, or the other way around. That is normal. Toddlers often focus their energy on one area at a time. If your child just learned to walk, their language might plateau for a bit while they practice moving. The CDC recommends developmental screening at 9, 18, and 30 months - and many pediatricians also do a check around 15 months. If you have concerns, you do not need to wait for a scheduled screening. Asking questions early gives you and your child the best chance for a great outcome.
Key takeaways
- Gross motor: Walking Independently
- Fine motor: Stacking Two Blocks
- Language: Using 3 to 5 Words
- Social-emotional: Imitating Everyday Actions
- Cognitive: Using Objects Correctly
“Skills such as taking a first step, smiling for the first time, and waving 'bye-bye' are called developmental milestones. Children reach milestones in how they play, learn, speak, act, and move.”
Your toddler walks on their own without holding onto furniture or your hand.
What it looks like
Your child takes steps independently with a wide, unsteady gait. They may hold their arms up for balance, fall frequently, and prefer to crawl when they need to get somewhere quickly. Walking looks wobbly and "drunken" - that is completely normal at this stage.
Typical range
When should I worry?
This is normal
The normal range for walking is very wide - from 9 to 17 months. Many healthy toddlers are not walking confidently at 15 months. If your child is cruising and taking a few steps, they are well on their way.
Mention at next visit
If your child is not walking independently by 16-17 months, mention it at your next visit. Your pediatrician may want to watch for another month or two.
Call your doctor
If your child cannot stand even with support, walks only on their toes all the time, or has stopped walking after previously being able to, call your pediatrician.
Stooping and Recovering
Your toddler bends down to pick something up off the floor and stands back up without falling.
What it looks like
Your child sees a toy on the floor, bends at the waist or squats down to grab it, and then straightens back up to standing. They may wobble but they manage it.
Typical range
When should I worry?
This is normal
Being able to bend down and stand back up requires balance and core strength. If your child is just starting to walk, they probably cannot do this yet, and that is fine - it comes with practice.
Mention at next visit
If your child cannot bend and stand back up by 17-18 months (assuming they are walking), mention it at your next visit.
Call your doctor
If your child frequently loses balance and falls more than expected for their level of walking, contact your pediatrician.
When to Talk to Your Doctor
Red flags to watch for
If you notice any of the following, contact your pediatrician. These signs do not necessarily mean something is wrong, but they are worth discussing with a professional.
Does not walk or attempt to walk
What to do
Mention at your next visit. If not walking by 18 months, your pediatrician may recommend evaluation.
Does not point to show you things or to request
What to do
Bring this up with your pediatrician. Pointing is an important communication milestone.
Does not use at least 1-2 words
What to do
Mention at your next visit. If there are also no gestures, this is more concerning.
Does not seem to understand simple words like "no" or "give me"
What to do
Let your pediatrician know. A hearing evaluation may be helpful.
Does not imitate actions or sounds
What to do
Mention to your pediatrician at the next visit.
Does not notice or seem to care when a caregiver leaves or returns
What to do
Bring this up with your pediatrician.
Has lost skills they previously had
What to do
Call your pediatrician right away. Loss of skills always warrants prompt evaluation.
Frequently asked questions
What milestones should a 15 months baby have?
When should I worry about my 15 months baby's development?
What are the red flags at 15 months?
Bottom line
Every baby develops at their own pace. The 15 months milestones listed here are typical ranges based on CDC, WHO, and AAP guidelines. Missing a milestone doesn't necessarily mean something is wrong, but talk to your pediatrician if you have concerns.
Trust your instincts. If something feels wrong, reach out to your pediatrician. Worrying about your baby means you care — that is a good thing.
All content follows our editorial policy and is reviewed against published clinical guidelines.
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