Ruby Rose reveals why she left 'Batwoman' last year

She stepped down from her role as Kate Kane after just one season.

Ruby Rose shocked fans last year with the bombshell announcement that she would be leaving the groundbreaking CW series "Batwoman" after just one season.

More than a year later, the 35-year-old actress is opening up more about why she left the show.

During an interview on Australia's "The Kyle and Jackie O Show," Rose said the real reason she stepped down from her role as Kate Kane was because she was actually allergic to her latex costume.

“I did find out that I was allergic to latex ... unfortunately, my mask is latex,” Rose explained. "I was getting worse and worse, because as you get more contact with it, I guess you get more reactions. I took off the [mask] at the end, and my face was just hives. My throat was all messed up.”

Adds the Australian actress, "It was like it was out of a scary movie."

Speaking to Entertainment Weekly last year, the "Orange Is the New Black" alum cited a back injury she suffered while filming "Batwoman" as the reason for leaving the show.

"I was told I needed an emergency surgery or I was risking becoming paralyzed. I had herniated two discs doing stunts, and they were close to severing my spinal cord," she said back then.

Rose made history as the first lesbian superhero to be cast in a scripted live-action TV series.

Javicia Leslie assumed the role of Ryan Wilder/Batwoman in the second season, becoming the first Black woman to play the crime fighter.

Kate Kane was recast with 26-year-old English actress Wallis Day.