Arnold Schwarzenegger looks back at third open-heart surgery that nearly killed him

Arnold Schwarzenegger, a former professional bodybuilder and renowned veteran actor, looked back at his third open-heart surgery before filming Terminator: Dark Fate and revealed that it nearly costed him his life.

The former Governor of California suffered from a congenital heart defect since birth and before filming the action movie he went for his third open-heart surgery.

In the latest viral YouTube video, he shared that he had an unexpected internal bleeding during the operation and the medical team had to open him up to "save" his life.

Arnold, 76, exclaimed, "I was really freaking out, I woke up and all of a sudden the doctors were in front of me saying, 'I'm so sorry but it was unlike what we planned.' [They said], 'We made a mistake and poked through the heart wall,' and had to open me up very quickly."

The Last Stand famed actor added, "The bottom line is, you cannot roll the clock back. I was in the middle of a disaster. So now how do I get out of it? You have to shift gears. Collect yourself, shift gears and say, 'Okay what I need to do now is get out of this hospital.'"

The YouTube video featured small montages of his road to recovery, in which he can be seen taking small steps around the hospital.

He mused, "I looked like an idiot waddling around in the hallways, but the bottom line was I was getting going because the doctors said you have to exercise your lungs because if you get pneumonia you can die."

After battling with a health crisis, Arnold Schwarzenegger recently launched a health and fitness newsletter to "show" a successful part of his life and motivate other people.