Every toddler has bit or has been bitten but if you have a child that has bit it dosn't mean that they are a biter. In daycares studies have proven that around half of the children have been bitten about three times a year. So biters are common.
Biting can come in different stages. The first stage is when the teeth are erupting from the gums. Your child will want to bite to sooth the discomfort of the swollen gums. This kind of biting will be soothed from biting a rattle or a teething ring. If while breastfeeding your baby tries to bite, remove your baby and set them down in a safe spot. At this time when your baby gets a negative response they will stop biting soon.
Around the time that your toddler celebrates their first birthday is when they may experiment with biting again. They usualy bite to show some excitement. When this stage that they are going through your toddler may try to bite you be certain that your respond firmly each and every time and the biting should stop.
At the age of two year your toddler will probably start to bite again. Your toddler bites at this time to show that they want to be independent. If your toddler bits at this stage be certain that you give your child a time out and make sure that you explain that being bitten hurts. It is time to teach your child the commutation skills that they are probley lacking. After your toddler has the skills that are needed to commutate the biting should stop.
If your toddler is going through a biting stage make certain that you closely watch them. The best thing to do at this stage is to acknowledge the good behaviour. It wouldn't hurt to offer your toddler something to chew on at this stage either. If you have caught your toddler biting the respond with a firm voice and place your toddler on a time out.