No one should ever doubt Ronda Rousey’s toughness.

The UFC and WWE star revealed the details of how she nearly lost her left middle finger in a crazy accident while filming a scene for the television show “9-1-1” in Mexico.

“First take of the day, all I had to do was pretty much open up this boat door and step out and had lines and all this stuff. I guess I was just a little bit too short to push the boat door all the way to the top, so I kind of had to give it a little bit of an oomph, like a push, and it either stalled at the top and came back down or it bounced back and came back down,” Rousey said in a video posted on her YouTube channel.

“But it was staying up enough for me to turn my back on it. I stepped out and the boat door slammed down. I thought I just jammed my nail … I was thinking ‘Ouch, f–k. Don’t be a p—y, just finish the scene.’ So I finished the scene. I had all these lines and stuff and I was like throwing things off of the boat, and then I looked down and was like, ‘Oh.’ I had to tell the director. I remember turning towards him and being like, ‘You guys aren’t going to like this, but my finger is no longer attached to my finger.'”

Rousey, 32, said her bone was visible and her tendon was barely hanging on. She also fractured the tip of her ring finger. She had to be rushed to a hospital, where she was treated by a doctor who happened to be a former fighter who trained with Rousey’s husband, MMA fighter Travis Browne. She now has a bolt and screws holding her middle finger together.

“Everybody on set, I’m pretty sure they all think I’m a psychopath for finishing the scene and not saying anything,” Rousey said.

The former UFC and WWE champion somehow went back to work the day after the accident and she says she already has 50 percent range of motion back.

Unfortunately for her and her husband, this incident derailed yet another planned vacation as the two have designs on starting a family. An injury suffered in April during WrestleMania at MetLife Stadium forced a pair of vacations to be put on hold, and they bailed on a Hawaii trip when she was cast as firefighter Lena Bosko on “9-1-1.”

“We had so many plans for impregnation vacations, but I guess we have to roll with it,” Rousey said.