Can a baby start teething at two months?

The average age for a baby to begin teething is 6 months, although it can begin at as early as 2 or 3 months or as late as 12 months old, according to eMedicineHealth. On average, a child has all 20 primary teeth by the age of 3, reports WebMD.

Typically, the lower front teeth erupt first, then the upper teeth begin to come through one to two months after the lower teeth, explains WebMD. Symptoms of teething include fussiness, gum soreness, gum swelling and drooling. To alleviate symptoms, parents can provide teething rings, use a clean finger to rub the baby's gum for two minutes or administer an over-the-counter pain reliever.