Does hemophilia affect children differently than adults?

People are born with hemophilia, and it's usually diagnosed in children under a year old, either while they're still in the womb or at birth. But if the condition is mild, symptoms may not appear at first. As the child becomes a toddler and crawls and learns to walk, bruising and bleeding can occur and indicate the condition. By adulthood, most people have learned the nature of their condition and how to manage it.