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Why Do Babies Make an O” Shape With Their Mouth

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It is a natural scenario that a baby makes their mouth “o” shape. But why-do-babies-make-an-o-shape-with-their-mouth? Babies make an “O” shape with their mouths for a number of reasons. When they are hungry, the motion helps them to latch onto their mother’s breast or bottle in order to feed.

This reflexive behaviour is the rooting reflex and typically appears during the first few weeks of life. Additionally, this mouth movement helps strengthen facial muscles that are necessary for speaking, laughing and expressing emotion later on in life.

In this guide, we will talk about the different reasons for a Why do babies make an o shape with their mouths. The potential reasons would be helpful for you.

Baby Making Fish Mouth

Baby Making Fish Mouth

Baby-making fish mouth is a popular dance move made famous by the K-pop group BTS. It involves putting your hands on either side of your face, with thumbs touching and fingers spread out in an imitation of a fish’s mouth. The move became viral after one of the members, Jungkook, performed it during one of their concerts back in 2017.

Since then, it has been widely shared online and copied by many fans worldwide!

Why Do Babies Make Pursed Lips?

Why Do Babies Make Pursed Lips

Babies often make a pursed lips expression, which looks like they are puckering their lips or sucking on something. This is an instinctual behaviour that babies begin to exhibit shortly after birth and can continue into toddlerhood. This behaviour is most likely driven by the baby’s need for comfort and security as they explore the world around them.

Babies may suck on their lower lip when feeling hungry, trying to communicate with someone. Besides, they can do this simply when anxious in a new environment. It also serves as a way of self-soothing during stressful moments. It helps soothe gums while teething and has calming effects due to its rhythmic nature.

Furthermore, making this facial expression strengthens the muscles involved in speech development, such as those used for forming sounds needed for language acquisition – which explains why some parents see this activity continuing into older age groups, too!

All in all, babies’ pursed lip expressions are an important part of their development and serve many purposes, including hunger communication, stress relief, muscle strengthening, and even language building!

Why Do Babies Pout Their Lips?

Many parents are confused about why babies pout their lips. Babies pout their lips for a variety of reasons. It could be that they are feeling frustrated, angry, overwhelmed or sad. Babies can’t express themselves in words yet, so they resort to different facial expressions and body language.

Pouting is one-way babies can show you something is wrong and that they need comfort from a parent or caregiver. Sometimes, babies will also pout when attempting to learn something new, such as crawling or walking.

It’s their way of expressing confusion about the task. Whatever the case, responding with love and patience can help your baby understand whatever issue is causing them distress and get back on track quickly!

Why Do Babies Stick Their Bottom Lip Out?

It is a common phenomenon for babies to stick their bottom lips out when they are upset, overwhelmed or in distress. This behaviour is known as the “pouting lip”, and it usually indicates that the baby needs comfort, reassurance and attention.

The pouting lip often appears during frustration or stress, when the child feels like he/she cannot get what they want, understands something or cannot control a situation.

It can also be an indication that the baby is feeling uncomfortable due to hunger, exhaustion or pain. While there may be some instinctual basis for this behavior – such as sticking out one’s bottom lip signalling submission in humans – experts believe that most of this behavior comes from learned associations.

Parents who respond quickly to their children’s cries help teach them that if they make certain facial expressions, then a parent will come to provide comfort and assistance – thus reinforcing these behaviors over time.

In other words, babies learn how to use body language (including sticking out their bottom lip) as a way of communicating with those around them before they are able to form words into sentences.

Why Do Babies Furrow Their Brow?

Why Do Babies Furrow Their Brow

Babies often furrow their brows for a variety of reasons. For some, it may indicate something is wrong, such as when upset or uncomfortable. They may also furrow their brows when concentrating on something, such as trying to make sense of a new situation or learning a new skill.

It can also happen when babies deeply think about something and need time to process what’s happening around them; this thinking is often accompanied by the classic “furrowing” expression. In addition, babies may sometimes furrow their brows out of habit – just like adults do!

So, if your baby seems to be frowning at you or others, don’t worry—it’s likely just normal behaviour and not necessarily indicative of any problem.

Warning Signs in Babies


In conclusion, babies make an O-shape with their mouths for various reasons. From being hungry to trying out new positions and facial expressions, the O-shape can be seen in many forms. Ultimately, this is another way babies explore and learn about the world around them.

Understanding why they do it can help us better understand our little ones and appreciate how much they learn daily!

Jennifer C. Wilson

Jennifer C. Wilson is a respected author and baby expert behind the informative blog, With years of experience in early childhood development and as a mother of two, Jennifer provides valuable tips and resources for parents looking to provide the best care for their little ones.

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