It is possible that the main title of the report Hemophilia A is not the name you expected. Please check the synonyms listing to find the alternate name(s) and disorder subdivision(s) covered by this report.
There are different types of hemophilia. With hemophilia A, your body doesn’t have enough of a protein called factor VIII, which your body needs to make clots and stop bleeding.
Hemophilia A can be mild, moderate, or severe, depending on how little you have of factor VIII.
Hemophilia A runs in families. It's usually diagnosed in babies, toddlers, or young children.
Hemophilia A comes from your genes. You can inherit it from your parents. Or it can happen if a certain gene changes before you're born. This change is called a mutation.
There is a rare, dangerous form of hemophilia A that is not inherited. It's called acquired hemophilia A and it can be related to pregnancy, cancer, or the use of certain medications. However, no cause can be found in about half of cases.
The main symptoms you might notice are bleeding more than normal and bruising easily. For instance: