A parent may always request that a child support order be modified. Modification is granted in order to meet changes in the needs of the children. For instance, if the child has special medical or educational needs, the court may modify the child support order and require that the parents pay for those added expenses. The court may also modify a child support order to reflect changes in a parent's ability to pay the original support order. For example, if the parent becomes unemployed or disabled, the court may modify the child support order in response to that parent's loss of income.