Bumps and scrapes that normally cause only minor injuries can be serious for children with hemophilia due to their inability to clot blood properly. Hemophilia is a rare genetic bleeding disorder where the blood is missing or deficient in clotting factor VIII or IX, preventing normal clot formation. While symptoms vary in severity, treatment involves periodic replacement of the missing clotting factor through intravenous infusions to prevent internal bleeding and joint damage, though these treatments are very expensive.