In a birth injury lawsuit, the plaintiff is typically the parents or legal guardians of the injured child. They file the lawsuit on behalf of their child, seeking compensation for injuries that occurred due to medical negligence or malpractice during pregnancy, labor, or delivery. The lawsuit aims to cover medical expenses, ongoing care, and the child's pain and suffering. The parents act as representatives to ensure their child’s rights are protected and to secure the resources necessary for the child’s long-term well-being and quality of life.