Baby Blowing Raspberries - Developmental Milestone

Baby Blowing Raspberries – Developmental Milestone

Medically Reviewed By
Dr. Arti Sharma (Paediatrician)
View more Paediatrician Our Panel of Experts

As a child grows, they go through numerous developmental milestones that their parents anticipate and celebrate. Some of them, such as rolling over, crawling or even talking, are well known, but there are some milestones that are not very common, and not every parent knows about. For instance, a lesser-known one, perhaps, is blowing raspberries. But why do babies tend to blow raspberries? Well, spit-filled behaviour can be associated with babies’ language development milestones.

In this article, we discuss the meaning of this relatively underrated about this blowing raspberry milestone, also known as ‘Razzies’ or spit bubbles. We shall also discuss the benefits of blowing raspberries for our little ones. Let’s begin!

Video : Baby Blowing Raspberries – Reasons and Benefits

What Is Meant By Blowing Raspberries?

The giggle-inducing bubbling sound that infants make with their lips and tongue is known as blowing raspberries or ‘razzies’. Blowing raspberries creates a funny noise akin to a motor humming. It happens when a baby blows bubbles from the mouth. This is hilarious to watch and produces an overload of oxytocin for mother and child as they bond, but it is also a significant development and antecedent to the language capabilities of the baby.

Also Read: Baby Sign Language: How to Communicating With Your Infant

When Do Babies Start Blowing Raspberries?

Babies start blowing bubbles as early as two months of age. And when a 2-month-old baby starts blowing bubbles, it is a sign that he is experimenting with his mouth, which is a precursor to speech development. And although babies begin blowing bubbles around two months of age, the true razzies begin at around five months. By the sixth month, your little one will blow bubbles, making raspberry sounds and drooling.

Baby Blowing Raspberries

Why Do Babies Blow Bubbles?

Blowing spit bubbles helps prepare the baby for future developmental milestones like chewing, drinking, and talking, all of which are essential for his survival. An increase in the production of saliva from 3 to 6 months also helps the baby prepare for the arrival of his first tooth.

How Does Blowing Raspberries Benefit a Baby?

When a baby blows raspberries, he may make funny noises and may strain his facial muscles while concentrating. This helps him develop control on his tongue, lip, and cheeks simultaneously.

1. Facial Muscle Workout

Blowing bubbles and raspberries helps the baby exercise the muscles needed for independent lip movement, separate from the jaw and tongue. It also improves the lip tension required later to seal a cup while drinking water and other liquids.

2. Babbling

Blowing bubbles also help in the language development and speaking abilities of the baby. The babbling begins to sound like distinct letters of the alphabet like m, d, a.


3. Helps in Teething

When a baby blows bubbles, it also helps in teething. The excess saliva produced when a baby blows bubbles helps soften the gums, thus preparing them for the arrival of the first tooth.

4. Understand Cause and Effect

Blowing raspberries help babies to learn cause and effect with the help of a little experiment. When a child blows in a raspberry, they check for the reaction of the people around them. The baby may act amused or giggle after you respond positively to blowing raspberries.

5. Encourages Bonding

Babies often blow raspberries to interact with their parents. This helps to improve the bonding between them.

How Can Parents Encourage It?

Blowing raspberries is a small yet crucial milestone. If your baby blows raspberries, you should encourage this behaviour as it will help develop speech and language acquisition skills in him. Here is what you can do to encourage him:

  • Imitate every little sound that your child makes. Be conversational with your child. Try adding new sounds to the conversation and pause to see if the baby mimics you.
  • Sing to your infant and bring in variation to the pitch and tone of words. Sing fast and then go slow. Try a few words loudly and then go into a soft whisper.
  • Help your baby make a rolling sound by rubbing your finger on his tiny lips.
  • Gently blow raspberries on the baby’s arm or belly to help him understand how it is done.
  • Sing along to familiar songs and let your baby watch your lips as they move.
  • Pretend-play with the baby and make him use toy phones to help him babble or talk.
  • Engage the baby’s sound and sight skills for better understanding.Recite rhymes that involve hand movements while singing.
  • Most importantly, let your child hear your voice all the time. Talk to him as often as possible to help him develop his facial muscle strength.

Mother playing with baby

When to Consult a Doctor?

Babies most likely learn to laugh, coo, and turn towards sounds before they attempt to blow bubbles or babble. Most infants blow raspberries by the age of 5 months. If your baby doesn’t blow raspberries by this age, you don’t need to panic. Some babies skip the raspberry stage altogether, but they make sounds with their lips and mouths – and this is a good sign. However, if your baby doesn’t show any sign of blowing bubbles by eight months of age, consult a paediatrician. The doctor will be able to look for signs of speech delay or underlying neurological problems in your baby and may suggest a treatment for the same.


1. Can Blowing Raspberries Be Considered As a Developmental Milestone?

Yes, blowing raspberries is a milestone that precedes phases of babbling and then talking. Although, many babies might skip this milestone and directly begin to babble.

2. How to Prevent Your Baby From Blowing Raspberries While Eating?

Give your child a gentle but firm reminder that they are not allowed to do this while eating. If your baby still continues the behaviour, you can pull the spoon and stop offering them food for a minute or two.

Blowing raspberries is an important developmental milestone. When your baby blows bubbles, you may not expect it and might discourage it – considering it a bad habit, but don’t. Spit bubbles are actually a workout for your little one’s mouth. So encourage him to blow raspberries and enjoy the raspberry-blowing phase by blowing back at your child, giggling with him, smiling at his smile, and by having a wonderful time together.


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Also Read: 

Baby Sitting Milestone
Bottom Shuffling in Baby
Cruising Milestone in Infants

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