Teething Signs: What's Real, What Isn't, and What Helps
It's eleven at night, the truck's loaded for the morning, and the baby has been gnawing on their own fist for an hour. There's a teether somewhere in the house. There are also four articles open on your phone telling you four different things.
The authorities agree on most of this. On one point they flatly contradict each other, and that's the part worth your time.
When it starts, and why nobody gives you the same number
The FDA says infants "begin teething around age 4 to 7 months." The American Academy of Pediatrics says first teeth "typically make an appearance between 6 to 10 months," and adds that a baby "may begin to feel teething discomfort weeks or even months beforehand, possibly as early as 3 months." The American Dental Association says teeth "typically start to come through between 6 and 12 months."
They agree on the far end. A full set of 20 baby teeth by around age three.
Worth knowing that spread before you go looking for a problem. A four month old chewing everything in reach is normal. So is a ten month old with nothing through yet. The AAP says the first two to arrive are usually the bottom front teeth.
What it actually looks like
The lists from the AAP, the ADA and the NHS overlap almost completely:
- More drool than usual, and clearer drool than usual
- Chewing on everything, hard
- Gums that look swollen and sore where a tooth is coming through
- Fussiness and worse sleep
- A rash on the face, which the AAP calls a side effect of the drool rather than of the teething
- Eating less than usual
The NHS adds two you might not connect: one flushed cheek, and rubbing at an ear on the side the tooth is coming through.
The fever argument
This is where the sources split.
The FDA lists "a low-grade fever" among the occasional symptoms of teething. The NHS goes further and puts a number on it, describing a temperature "slightly raised but less than 38C."
The American Academy of Pediatrics says the opposite, and says it flatly: "Though many parents expect a fever when baby teeth start to break through, extensive studies show this is a false symptom of teething."
The AAP explains why it presses the point rather than letting it go. Blaming a fever on teething can delay care for something else, and the months when babies teethe are the same months when ear infections, urinary tract infections and meningitis show up.
The way we see it, parent by the AAP position. If your kid has a real fever, treat it as a fever rather than as teething, because the cost of being wrong only runs one direction. We sell teethers, we're not pediatricians, so all three pages are linked at the bottom and you can weigh them yourself.
What teething doesn't cause
On this the sources line up. The AAP: "Teething does not change the way your baby's gut works." The NHS: "Some people think that teething causes symptoms such as diarrhoea, but there's no evidence to support this."
The AAP also rules out diaper rash, a runny nose, and any effect on the immune system. "Teething also doesn't affect your child's immune system." Note the distinction on rash, because it's easy to blur. A rash around the mouth from all that drool is real. A rash further down isn't teething.
What actually helps
The advice here is old, cheap and boring, which is usually a good sign.
Your finger. Every one of these sources says the same thing. Rub the gums gently with a clean finger. The ADA adds a small cool spoon or a moist gauze pad.
Something firm to chew. The FDA says give "a firm (not liquid-filled) teether made of rubber to chew on." Liquid-filled ones can split, and the AAP notes that leaves sharp edges in a place you don't want them.
Cold, not frozen. The NHS says some teething rings can be cooled in the fridge first, then: "Never put a teething ring in the freezer, as it could damage your baby's gums if it gets frozen." The AAP suggests chilling a damp twisted washcloth, and in the same breath says "Don't let your baby chew directly on anything that's frozen solid, since hard objects might hurt tender gums." Fridge cold soothes. Freezer hard hurts.
Wipe the drool. The NHS says gently wiping the face helps head off the rash before it starts. On a race weekend that's one more thing in the bag, and it's worth the space.
On medicine, the NHS says there's "a lack of evidence that teething gels are effective" and to try teething rings and simple painkillers first. Anything you put in or on your baby is a question for your pediatrician, not for a brand that sells teethers.
What to skip
This list is short, and every item on it comes with a named harm.
- Benzocaine gels. The FDA warns they can cause methemoglobinemia, "in which the oxygen-carrying capacity of red blood cells is greatly reduced," and names Anbesol, Orajel and others.
- Lidocaine. The FDA says it can cause "grave harm, such as heart problems, severe brain injury and even death."
- Homeopathic teething tablets. The FDA recalled Hyland's tablets over belladonna, stating there's "no known safe dose or toxic dose of belladonna in children" and that tested products contained inconsistent amounts.
- Teething necklaces and bracelets. The FDA has received "reports of death and serious injuries to infants and children, including strangulation and choking, caused by teething jewelry."
- Anything frozen solid, and anything liquid-filled. Covered above.
While you're at it, start brushing
The CDC says wipe the gums with a soft clean cloth twice a day before any teeth arrive, then brush twice a day once they do, and see a dentist by the first birthday.
One small difference worth raising with your dentist rather than guessing at. The CDC describes brushing with plain water, while the AAP says to use fluoride toothpaste as soon as the first tooth erupts, "a tiny smear, the size of a grain of rice," until age three.
Where ours fits
The Moto Baby Teether is one piece of food-grade silicone shaped like a set of handlebars. No cord, no beads, no liquid inside, nothing to work loose. It's firm, it chills in the fridge, and it goes in the dishwasher. Age graded 0+.
ACT Lab tested it against ASTM F963-23 and detected no lead, no BPA, none of the nine regulated phthalates and none of the soluble heavy elements. If you want the longer version of how to judge any teether, including ours, that's the other post.