Classification by type of points
All types of scissors can have blunt or sharp blades (A: Sharp:Sharp, B: Blunt:Blunt).
All types can have either straight or curved blades.
Mayo and Metzenbaum
Mayo scissors (B) are used for cutting heavy fascia and sutures.
Metzenbaum scissors (A) are more delicate than Mayo scissors.
Metzenbaum scissors are used to cut delicate tissues.
Metzenbaum scissors have a longer handle to blade ratio.