This may come as a shock, but Johnny Knoxville knows his limits, and some risks just aren’t worth it anymore.

After suffering a past brain hemorrhage, the "Jackass" star can no longer be hit over the head during stunts.

HOLLYWOOD, CALIFORNIA - FEBRUARY 01: Johnny Knoxville attends the U.S. premiere of "Jackass Forever" at TCL Chinese Theatre on February 01, 2022 in Hollywood, California. (Photo by Kevin Winter/Getty Images)

The 54-year-old sustained serious head trauma in 2022 after being flipped over by a bull while performing a stunt.

The incident left Knoxville with a concussion, a broken wrist, a broken rib, and he is now "over [his] limit for concussions.”

LOS ANGELES, CALIFORNIA - JANUARY 15: Johnny Knoxville attends the 28th Annual Critics Choice Awards at Fairmont Century Plaza on January 15, 2023 in Los Angeles, California. (Photo by Kevin Winter/Getty Images for Critics Choice Association)

Speaking on the "Books That Changed My Life" podcast about the upcoming fifth “Jackass" movie, Knoxville admitted:

I can’t do anything where I can get another concussion. [I’m] way over my limit for concussions.

He continued, "But I don’t care about anything else. I just can’t get hit in the head anymore, but a lot of other guys can.”

Knoxville further explained that “Jackass" movies are "fun" for him but, "[They are] pure hell for the cast.”

NEW YORK, NY - APRIL 18: Actor Johnny Knoxville attends the "Elvis & Nixon" premiere during the 2016 Tribeca Film Festival at John Zuccotti Theater at BMCC Tribeca Performing Arts Center on April 18, 2016 in New York City. (Photo by Andrew Toth/Getty Images)

The new “Fear Factor” host previously revealed how a stunt nearly caused permanent damage below the belt and left him needing a catheter for more than three years.

He told Variety, "I broke my gym dog a number of years ago. That’s been well documented. So much has been said about so little."

LONDON, ENGLAND - NOVEMBER 02: Johnny Knoxville attends the UK Film Premiere of 'Jackass 3D' at the BFI IMAX on November 2, 2010 in London, England. (Photo by Stuart Wilson/Getty Images)

"The doctor said a couple centimeters down and it would’ve been out of commission,” Knoxville confessed.

He then quipped that the birth of his kids proves everything is in "working order" now.

LONDON, ENGLAND - NOVEMBER 02: Johnny Knoxville (front row 3rdL) and cast members attend the UK Film Premiere of 'Jackass 3D' at the BFI IMAX on November 2, 2010 in London, England. (Photo by Stuart Wilson/Getty Images)

As for his infamous bull injury, Knoxville mentioned in the past, "My family doesn’t like me doing this type of thing. This is most wicked bull hit I’ve ever taken."

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