Baby Teething: Real Symptoms vs. Common Myths

Your baby is fussier than usual, drooling through three bibs a day, and chewing on everything they can get to their mouth. The first instinct is to blame teething, and most of the time that instinct is right. Teething can be uncomfortable, sometimes for weeks at a time, and it shows up in ways that overlap with other normal baby behaviors. The trick is knowing which symptoms come from teeth pushing through the gums and which ones come from something else entirely.

Quick answer: Most babies start teething between 4 and 7 months, with the bottom front teeth usually arriving first. Common signs include drooling, gum chewing, mild irritability, and a low-grade temperature under 100°F. Fever above 100.4°F, diarrhea, and rash are not teething symptoms, and they need a call to your pediatrician.

The teething timeline most babies follow

The first tooth usually appears between four and seven months, though anywhere from three to twelve months is within normal range. The two bottom front teeth, the central incisors, come first, followed by the two top front teeth a month or two later. The lateral incisors arrive around eight to twelve months, then first molars around twelve to sixteen months, canines around sixteen to twenty months, and second molars around twenty to thirty months. By age three, most children have all twenty baby teeth. The molars are usually the most uncomfortable, because they’re larger and break through more gum tissue at once.

Symptoms that come with teething

Heavy drooling, often enough to soak shirts and cause a chin or cheek rash from the constant moisture. Chewing on hands, toys, crib rails, or anything within reach. Mild irritability that comes in waves rather than constantly. Disrupted sleep for a few nights when a tooth is actively cutting through. Mild gum swelling or visible white spots where the tooth is about to emerge. A slight increase in body temperature, but staying under 100°F. Some babies pull at their ear on the side where a molar is coming in, because the nerves in that area overlap. Most teething episodes last three to five days per tooth.

Symptoms that often get blamed on teething but really aren’t

This is where parents get tripped up. A fever above 100.4°F is not from teething. Persistent diarrhea is not from teething, though slightly looser stools can happen from swallowed saliva. A rash anywhere other than the chin and cheeks (drool rash) is not from teething. Vomiting is not from teething. A baby who seems lethargic, refuses fluids, or is inconsolable for hours needs a doctor’s eye, not a teething ring. The American Academy of Pediatrics’ parent resource on teething is clear on this point: fever, diarrhea, and excess crying aren’t symptoms of teething. The myth persists because the timing of teething overlaps with the age when babies start picking up viral infections from daycare and other contact.

What actually helps and what to skip

A clean, cold (not frozen) silicone teething ring or a damp washcloth chilled in the fridge works well. Letting your baby chew on a clean adult finger gives counter-pressure that feels good on sore gums. For ongoing discomfort, infant acetaminophen or ibuprofen at the right weight-based dose can help, but check with your pediatrician first if your baby is under six months. Skip teething necklaces (amber or otherwise), which carry strangulation and choking risks. Skip homeopathic teething tablets and gels containing belladonna, which the FDA has warned about. Skip benzocaine gels in children under two. Once those first teeth come in, cavity prevention becomes part of the picture, because brushing starts the day the first tooth appears.

When to call your pediatrician or dentist

Call your pediatrician if your baby has a fever over 100.4°F, refuses to drink for more than eight hours, has diarrhea or vomiting that lasts more than a day, or seems unusually lethargic. Call us if you notice white or brown spots on a newly erupted tooth, gum swelling that’s red and warm rather than just slightly puffy, or if your baby’s first tooth still hasn’t appeared by fifteen months. Pediatric dentists generally recommend a first dental visit by age one, which gives us a chance to check the eruption pattern, talk through brushing, and answer questions about teething before they become urgent.