How do wrestlers bleed? How real are the injuries? WWE's darkest secrets revealed

#5 How do Wrestlers Bleed?

Blood and gore is usually associated with Wrestling (not as much as it used to post the PG era). There have been plenty of theories, trying to explain how participants bleed at will. How could they possibly fake blood? Is it ketchup or another thick red substitute, or is it blood capsules?
The internet is full of interesting and theoretically robust theories. However, the truth is, the blood that we see during matches is actually 100% REAL. The process is called Blading.  The referee passes a small razor/blade to the wrestler, and he proceeds to make a small cut on this forehead.
This secretes a large amount of blood, which the wrestler spreads throughout his face using his hands.