Andrea, 46, announced her decision to undergo the surgery live on air and said: "Just to let you know, don't worry if you don't see me for a month of so, I'm actually going to be at home convalescing. I'm having a hysterectomy tomorrow [22 September]."
Her announcement came after the panel had been discussing whether they talk about their health with their partner.
Andrea didn't go into detail about her surgery, but added that there were "lots of personal reasons" for her choosing to go ahead with it. "I did go to the doctors and talk about it," she said.
Andrea then told the panel: "I will be at home watching you guys and maybe tweeting in, but that's where I'll be if you're wondering."
CBB star Saira Khan had been on the panel and reassured Andrea that she would be ok while giving her a hug.
Viewers at home were also quick to send her their well wishes via Twitter, with one user commenting: "Hope everything goes well...& wishing you a speedy & not too painful recovery."
Another said: "Good luck will miss you but a very speedy recovery hope all goes well thinking of you."
We're wishing her a speedy recovery too!
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