4 Reasons Why A Baby’s Lip Quivers And Tips To Ease It

If your baby’s lip quivers rapidly, particularly their lower lip, then they may have a condition called baby lip quiver. Sometimes, this quivering might be accompanied by crying. In addition, the tremble would resemble that of a cartoon character when it is cold.

Many factors contribute to a baby’s lip quiver. These factors could be the common cold or an underlying complex health issue such as an underdeveloped immune system or low vitamin levels. Although you need not worry yet, it is safe to observe your baby for other accompanying symptoms. Note any unusual and repetitive behaviors or symptoms that are interfering with your baby’s well-being.

Read on to know more about the causes behind this lip quivering, the treatment, and the signs to watch out for.

Why Does A Baby’s Lips Quiver?

Here are some possible reasons for the quivering of lips in babies.

1. Immature nervous system

Babies are born with an immature nervous system, which might cause the lower lip to tremble. This is normal and generally subsides in two or three months. During the growing period, the brain sends electrical impulses throughout the body. When this becomes erratic or too quick, it can be too much for the baby’s immature nervous system to handle, causing the lips to quiver (1)(2)(3).

Sometimes, overstimulation can cause trembles and jerks in other parts of the body.. These could be behind the lip quivering when your baby is young. If the quivering persists after your baby is six months, consult your pediatrician.

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Dr. Sharon Wiener, a board-certified pediatrician from Plano, Texas, says, “Lip quivering is a normal primitive reflex due to an immature nervous system. As long as your baby is alert, eating well, and happy, this reflex gradually resolves over the first four months. However, for persistent lip quivering after four months or lip quivering with a change in your baby’s mental status, feeding or general well-being, other more serious causes must be considered.

2. Use of muscles

A baby's lips may quiver upon passing gas

Sometimes, the baby’s lips might become quivery when they use certain muscles for peeing or passing wind. During such instances, the baby’s lower lip and jaw shake uncontrollably for a few seconds. This is common in newborns, as their muscles are still fragile. If your little one’s lips quiver, check their diaper.

3. Change in the temperature

Another common reason why a baby’s lips quiver is the cold temperature. You might often notice your baby’s lips quivering, their teeth chattering, and their body shuddering when you take them out in the cold or when you put them in the bathtub.

4. Medical reasons

A baby's lips may quiver due to underlying medical reasons

In rare cases, baby lip quivering could result from a congenital disability or an underlying medical issue. Some pathological conditions associated with tremors include hypoglycemiaiXA condition in which the body’s blood sugar level is lower than 70 mg/dL, intracranial hemorrhageiXBleeding in brain and the skull. It’s a life-threatening emergency., and hyperthyroid state (4). Studies indicate that tremors and quivering of lips or mouth could also indicate hypocalcemiaiXA treatable condition in which the body’s calcium is below the standard rangeTwitchingiXBrief, spontaneous muscle contractions,  this could be due to an underlying kidney problem or genetic cause for the low level.

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Such medical conditions, including neurological disorders are generally accompanied by other symptoms, such as sleep disturbances, poor feedings, irritability, twitching episodes, and generalized seizures (5).

If you notice prolonged quivering of lips in your baby and have ruled out nonmedical reasons, it is best to consult your pediatrician.

Diagnosis Of Lip Quivering In Babies

Your child’s doctor would do a physical examination to understand the reason behind the lip quivering. They may also ask questions about the baby’s medical history and if you had any complications during pregnancy or delivery.

The doctor might also recommend tests such as brain imaging (CT Scan or MRI), EEG, and X-rays to understand the brain’s functioning. Blood tests may also be conducted to understand if there are any deficiencies.

Treatments For Baby Lip Quiver

The doctor may prescribe medicines based on the underlying cause

If the quivering of lips is due to an immature nervous system or weak muscles, it usually improves on its own in two to three months.

But, if your doctor has diagnosed any other medical issues, they might recommend the following treatments.

  • For hypocalcemia, the treatment options depend on the extent of calcium deficiency. If the calcium levels are less than 6mg/dL in preterm infants and 7mg/dL in term infants, your doctor might prescribe calcium replacements (5).
  • In the case of more serious neurological problems, the doctor might prescribe medications or physical therapy.

Tips For Easing Quivering Lips In Babies

You can follow these tips for easing your baby’s quivering lips in the case of nonmedical reasons.

  • Cover your baby in warm clothes and make sure their bath water is at an optimum temperature.
  • Hold your baby close and gently tap on their lips when they quiver.
  • Keep track of the time and situations when your baby’s lips quiver.
  • Checking your baby’s blood sugar levels if they are at a risk for hypoglycemia (4).
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Avoid exposing them to cold climates for long hours.

Do not expose the baby to a cold climate for too long
  • Breastfeed them exclusively for the first six months.
  • Eat nutritious food so that your breast milk contains all the nutrients required for your baby to grow and thrive.
  • Avoid overstimulating your baby (2).
  • If you are concerned about your baby’s lip quivering, it is advisable to seek medical attention and have them evaluated by a doctor.

As parents, you observe every little movement of your baby. It is okay to get overprotective and over considerate when you see any unusual movement for the first time, such as a baby lip quiver. Do not panic if you have noticed your baby’s lips occasionally quiver. But keep observing to determine if it is normal or due to nonmedical reasons. If you notice it for a long time and you are concerned about the other symptoms, consult your baby’s doctor and begin proper treatment at the earliest.

Illustration: MomJunction Design Team

Key Pointers

  • The quivering of a baby’s lips is normal and can occur due to an underdeveloped nervous system, cold temperature, use of certain muscles, or underlying morbidity.
  • The doctor may carry out a physical examination along with a blood test and imaging modalities such as CT scan, EEG, or X-rays as part of the diagnosis.
  • Treatment usually involves home observation and remedies, but the doctor may prescribe medications and therapy if a serious condition is diagnosed.
  • The persistence of the quivering for more than three months may indicate an underlying condition that requires medical intervention.

Article written by Baby Plumbing

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