Is It Normal for a 3-Month-Old Baby to Start Teething?

Understanding Early Teething in Infants

While most babies begin teething between 6 and 8 months of age, it's not uncommon for some infants to start showing signs of tooth eruption as early as 3 months. Every baby develops at their own pace, and early teething falls within the broad spectrum of normal development. If your 3-month-old is sprouting teeth but otherwise growing well—meeting developmental milestones and gaining weight appropriately—there's typically no cause for concern.

Common Signs That Your Baby Is Teething

Teething can bring about several noticeable changes in your baby's behavior and physical condition. Excessive drooling is one of the earliest indicators, often accompanied by a strong urge to chew on fingers, toys, or anything within reach. This gnawing helps relieve the pressure and discomfort caused by emerging teeth.

Other Symptoms to Watch For

Babies may become fussier than usual, experience disrupted sleep patterns, or show a decreased interest in feeding due to sore gums. Some infants might develop a mild fever (below 100.4°F or 38°C), slight gum swelling, or even minor bleeding along the gumline. These symptoms are generally short-lived and part of the natural teething process—no medical intervention is required unless the fever becomes high or persists.

How to Support Your Baby During Early Teething

Oral hygiene should start early, even with just one tooth present. Gently clean your baby's mouth once a day using a soft, damp cloth or a clean cotton swab to wipe down the gums and new tooth. This removes bacteria and sets the foundation for lifelong dental health.

Soothing Sore Gums Naturally

Offer safe teething tools such as textured silicone teething rings or sterilized rubber toys with bumpy surfaces. Chewing on these items provides counter-pressure that soothes irritated gums. Always ensure teething toys are cleaned regularly and are free from small parts that could pose a choking hazard.

Nutrition and Dental Development

Strong teeth begin with proper nutrition. At three months old, babies should still be exclusively on breast milk or formula, which provide essential nutrients for healthy bone and tooth development. Since solid foods aren't recommended until around 6 months, make sure your baby receives an adequate daily dose of vitamin D—typically 400 IU—as advised by pediatricians. Vitamin D supports calcium absorption, which is crucial for forming strong enamel.

Preparing for Future Nutrition Needs

Once your baby reaches the appropriate age for solids, introduce nutrient-rich foods containing calcium, phosphorus, and vitamins A, C, and D. Options like pureed spinach, yogurt (if dairy is introduced safely), and fortified cereals can support ongoing dental growth. Avoid sugary snacks or drinks, even in small amounts, to protect delicate new teeth from decay.

When to Consult a Pediatrician

While early teething is usually nothing to worry about, consult your child's doctor if you notice extreme irritability, high fever, diarrhea, or signs of infection around the mouth. These symptoms are not typical of teething and may indicate another underlying issue.

In summary, a 3-month-old starting to teethe is earlier than average but still considered within the range of normal infant development. With gentle care, proper hygiene, and balanced nutrition, your little one can comfortably transition through this exciting milestone.