Generally speaking, it only takes a few days for a baby’s first tooth to grow from the time it is seen to the time it is fully grown. But the baby’s gums are itchy when teething, this period can give the baby appropriate use of regular manufacturers produced dental chews or teething bars, can help relieve the baby teething discomfort. Some babies may also experience diarrhea or low fever when teething, which usually disappears within a few days and does not require much worry. It is important to keep your child warm and avoid catching a cold. Most babies will have their first teeth at 4-6 months of age, but due to individual differences, some babies may have their teeth early, at three months, while some babies may have their teeth late, at ten months. But as long as your baby’s first tooth erupts within 12 months, it is normal and not a cause for concern.