The most common manifestation of moderate /severe Hemophilia A is:
High-Yield Explanation
Answer is A (Recurrent Hemahrosis): Recurrent Hemahrosis is the most common manifestation of Hemophilia A. 'Recurrent Hemahrosis is the most common manifestation of Hemophilia-A occurring in up to two third of patients' --Primer on the Rheumatic Diseases 'In the severe form the most common bleeding manifestations are the recurrent hemahroses'