How a child perceives and understands illness depends greatly on their developmental age. Kids change remarkably through ages and stages, and it is extremely helpful for parents to recognize and understand the differences. I hope that by breaking down the stages below, I provide a little bit of insight to parents as to what children are actually capable of doing and understanding at these points of development. Hopefully parents can use this information as a guideline to structure age-appropriate conversations and efforts when dealing with their sick children.