Just about every child has bit but whether or not they should be classified as a biter is another thing. There have been studies that were done that show about half of children attending daycares have been bitten three times per year. So biters are common.
Biting happens in many stages. The first stage is when the teeth are erupting from the gums. This is when your toddler will bite to make their gums feel better. This should be done on a rattle or a teething ring. If your baby tries to bite you while breast feeding quickly remove the infant and set them down in a safe place. When an infant gets a negative response from their mother they will soon stop biting.
About the time that your toddler has their first birthday is when they have their second stage of biting. They usualy bite to show some excitement. Sometimes healthy cycles can help. 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.
Again your toddler may start to bite around the age of two. Your toddler bites at this time to show that they want to be independent. When your toddler bites to prove that they are in control then you need to give the child a time out and explain that it hurts. It is time to teach your child the commutation skills that they are probley lacking. Occassionally normal routines will be helpful. When your toddler has the skills that are needed the biting should stop.
If your toddler is going through a biting stage make certain that you closely watch them. It is best to acknowledge good behaviour. Another good tip is to offer something for your toddler to chew on. Just like regular cycles, usually. If you catch your toddler biting you need to immediately respond with a firm toned voice and put your toddler on a time out.