Most babies start teething around 6 months of age, although the normal range is wide. Some babies get their first tooth as early as 4 months, while others may not show any teeth until after 12 months. This variation is common and usually not a sign of a problem.
The first teeth to appear are most often the lower front teeth, followed by the upper front teeth. Teething happens gradually over time, with different teeth coming in over the first two to three years of life. By about age 3, most children have all 20 baby teeth.
During teething, babies may drool more than usual, want to chew on objects, or seem a bit irritable. Mild gum swelling and temporary fussiness can occur, but high fever, diarrhea, or significant illness are not caused by teething and should not be ignored.
Comfort measures like gently rubbing the gums with a clean finger or offering a firm, clean teething ring can help. Avoid teething gels or home remedies without medical guidance. If teething seems delayed or symptoms are concerning, a pediatrician or pediatric dentist can provide proper evaluation and advice.