Hi. Thank you for your question. I will be happy to help.Hemophilia is a genetic condition which one is born with. Therefore, hemophilia does not "develop" over time.
However, there are various medical problems that can develop during life which can produce a tendency to bleed. Any such medical condition that affects the function of the clotting factors or the platelets in the bloodstream can increase the tendency for one to have bleeding issues.
As such, if you are finding that you are bleeding more than normal, it would be worthwhile to consult with a doctor, so that he may run appropriate testing, which likely would include some bloodwork to see if you have any problems with those clotting factors or platelets.
Some conditions that could lead to bleeding too easily can be dangerous if not treated appropriately, but for many such conditions an appropriate treatment would exist. Only by seeing a doctor would you know for sure what is going on.
Best wishes. Please let me know if you have any further questions. If this has been helpful, please rate me highly. Bonuses always appreciated.