A complete overview of hemophilia B is provided here. This video first deals with history of hemophilia, common symptoms and then history of Christmas disease and complete flow chart of info regarding hemophilia B. Timeline 0:00 Introduction 0:20 Answer to questions in previous video 2:12 History of hemophilia 2:50 Problem in coagulation in hemophilia 3:24 Test for hemophilia 5:00 Symptoms of hemophilia B 5:30 Genetics of hemophilia 6:31 Christmas disease 8:12 Hemophilia B