Baby Not Cooing
Medically reviewed by Dr. Emily Torres, PhD, CCC-SLP · Pediatric Speech-Language Pathologist
Content reviewed against published AAP, CDC guidelines
Last reviewed:
Speech and communication milestones vary widely, and worries about baby not cooing, here is what you need to know.
The short answer
Cooing - those soft "ooh" and "aah" vowel sounds - typically begins between 6 and 8 weeks of age and becomes more frequent by 2-3 months. Some babies start a bit later, especially if they were born prematurely. If your baby is socially engaged, making eye contact, and smiling, cooing is likely just around the corner.
Key takeaways
- Cooing - those soft "ooh" and "aah" vowel sounds - typically begins between 6 and 8 weeks of age and becomes more frequent by 2-3 months. Some babies start a bit later, especially if they were born prematurely. If your baby is socially engaged, making eye contact, and smiling, cooing is likely just around the corner.
- Usually normal when: Your baby is under 8 weeks old - many babies haven't started cooing yet at this age.
- Call your doctor if: Your baby does not respond to any sounds - no startling at loud noises, no turning toward voices - at any age. This suggests a possible hearing concern that needs prompt evaluation.
- Varies by age — see the age-by-age breakdown below
Parents everywhere have the same worry. You are doing the right thing by looking into it.
What Parents Should Know
According to AAP, CDC guidelines, cooing - those soft "ooh" and "aah" vowel sounds - typically begins between 6 and 8 weeks of age and becomes more frequent by 2-3 months. Some babies start a bit later, especially if they were born prematurely. If your baby is socially engaged, making eye contact, and smiling, cooing is likely just around the corner. At 0-6 weeks, during the first 6 weeks, crying is your baby's primary form of communication, and that's completely expected. Some babies begin making soft vowel-like sounds toward the end of this period, but most haven't started cooing yet. Focus on responding to your baby's cries - this back-and-forth teaches them that communication gets a response. It is generally considered normal when your baby is under 8 weeks old - many babies haven't started cooing yet at this age. However, you should contact your pediatrician promptly if your baby does not respond to any sounds - no startling at loud noises, no turning toward voices - at any age. This suggests a possible hearing concern that needs prompt evaluation.
Normal vs. Concerning
By Age
What to expect by age
0-6 weeks
During the first 6 weeks, crying is your baby's primary form of communication, and that's completely expected. Some babies begin making soft vowel-like sounds toward the end of this period, but most haven't started cooing yet. Focus on responding to your baby's cries - this back-and-forth teaches them that communication gets a response.
6 weeks - 3 months
This is when cooing typically emerges. Your baby may start with quiet "ooh" or "aah" sounds, often during calm, alert moments - especially during face-to-face interaction with you. Premature babies may start cooing later based on their adjusted age. Talking, singing, and responding to your baby's sounds encourages more vocalization.
3-4 months
By 3-4 months, most babies are cooing regularly, laughing, and beginning to experiment with a wider variety of sounds including squeals and growls. If your baby is not making any vowel sounds by 4 months (adjusted age for preemies), it's worth mentioning to your pediatrician. A hearing screen may be recommended.
4-6 months
Babies transition from cooing to vocal play and early babbling during this period. If your baby has never cooed or made vowel sounds by 4-5 months, your pediatrician will likely want to check hearing and may recommend a developmental evaluation. Early identification of any issues leads to the best outcomes.
What to Tell Your Pediatrician
- Describe when you first noticed baby not cooing and how it has changed over time.
- Note your baby's current age and which age-specific patterns you are seeing.
- Mention if your baby is 3-4 months old (adjusted age) and has never made any vowel sounds or cooing noises.
- Mention if your baby seems unusually quiet overall - rarely cries and makes very few sounds of any kind.
- Bring a list of any questions or observations you want to discuss at the appointment.
What Should You Do?
When to take action
- Your baby is under 8 weeks old - many babies haven't started cooing yet at this age.
- Your baby was born prematurely and you're calculating based on adjusted age - a baby born 6 weeks early may not coo until closer to 3-4 months chronological age.
- Your baby coos in some settings but not others - babies often vocalize more during calm, one-on-one interaction than in busy or stimulating environments.
- Your baby is making eye contact, smiling socially, and seems engaged even if cooing hasn't started yet.
- Your baby is 3-4 months old (adjusted age) and has never made any vowel sounds or cooing noises.
- Your baby seems unusually quiet overall - rarely cries and makes very few sounds of any kind.
- Your baby doesn't seem to react to your voice or turn toward sounds.
- Your baby does not respond to any sounds - no startling at loud noises, no turning toward voices - at any age. This suggests a possible hearing concern that needs prompt evaluation.
- Your baby was cooing and has completely stopped making sounds, especially if accompanied by decreased social engagement.
What You Can Do at Home
- Keep track of when you notice baby not cooing — noting the time of day, duration, and any triggers can help your pediatrician.
- Remember that your baby is under 8 weeks old - many babies haven't started cooing yet at this age — this is generally within the range of normal.
- At 0-6 weeks, focus on observation rather than intervention unless your pediatrician advises otherwise.
- Talk, read, and sing to your baby frequently. Narrate daily activities to build language exposure.
- While monitoring at home, seek immediate care if your baby does not respond to any sounds - no startling at loud noises, no turning toward voices - at any age. This suggests a possible hearing concern that needs prompt evaluation.
Related Resources
Milestone Checklists by Age
Track your baby's developmental milestones from birth to 5 years with age-specific checklists.
Month-by-Month Development
Detailed monthly development guides from birth through 24 months.
When to Call the Doctor
General guide on when to call the pediatrician, visit urgent care, or go to the ER.
Frequently asked questions
Is baby not cooing normal?
When should I call the doctor about baby not cooing?
When is baby not cooing normal?
What causes baby not cooing?
What should I mention to my pediatrician about baby not cooing?
Is baby not cooing normal at 0-6 weeks?
Is baby not cooing normal at 6 weeks - 3 months?
Should I go to the ER for baby not cooing?
Does baby not cooing go away on its own?
References
Doctor Visit Checklist
Bring this checklist to your next pediatrician visit to discuss Baby Not Cooing.
Things to mention
- Describe when you first noticed baby not cooing and how it has changed over time.
- Note your baby's current age and which age-specific patterns you are seeing.
- Mention if your baby is 3-4 months old (adjusted age) and has never made any vowel sounds or cooing noises.
- Mention if your baby seems unusually quiet overall - rarely cries and makes very few sounds of any kind.
- Bring a list of any questions or observations you want to discuss at the appointment.
Observations to share
- Your baby is 3-4 months old (adjusted age) and has never made any vowel sounds or cooing noises.
- Your baby seems unusually quiet overall - rarely cries and makes very few sounds of any kind.
- Your baby doesn't seem to react to your voice or turn toward sounds.
Urgent signs to report immediately
- Your baby does not respond to any sounds - no startling at loud noises, no turning toward voices - at any age. This suggests a possible hearing concern that needs prompt evaluation.
- Your baby was cooing and has completely stopped making sounds, especially if accompanied by decreased social engagement.
My notes
From ismybabyalright.com — free, evidence-based baby health guides
All content follows our editorial policy and is reviewed against published clinical guidelines.
2,705 evidence-based guides6 authoritative medical sources5 medical advisory board members
Related Resources
Bottom line
Most cases of baby not cooing are normal. Talk to your pediatrician if your baby does not respond to any sounds - no startling at loud noises, no turning toward voices - at any age. this suggests a possible hearing concern that needs prompt evaluation.
Trust your instincts. If something feels wrong, reach out to your pediatrician. Worrying about your baby means you care — that is a good thing.
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