Brandi Glanville will be going under the knife on Wednesday.

The Real Housewives of Beverly Hills star's representative confirmed to Us Weekly that Glanville will be undergoing surgery tomorrow to remove a breast tumor that isn't cancerous.

Glanville first revealed she had a tumor late last week, but insisted she was fine.

"I think I found a name 4 tumor in my booby thats coming out dec12," Glanville tweeted at the time. "Its not the big C'please dont worry, its just some n'lame thats been making me ill."

The reality TV star reassured fans via Twitter on Sunday her breast tumor is benign.

"Will be fine! Its not cancer and I look forward [to] my kids doing things for me for a change," she said in the follow-up tweet.

After appearing on the second season of The Real Housewives of Beverly Hills in a supporting role, Glanville became one of the show's main stars for its currently-airing third season.