Nicole Eggert says she underwent a major surgery this past weekend … sharing a photo from after her mastectomy.

The actress shared a pic Wednesday in which she’s wearing just a sports bra and a small pair of underwear … no smile on her face.

She captioned the photo, “Had a mastectomy with reconstruction on Thursday. How was ur weekend?” — so, she’s putting on a pretty calm front despite the recent surgery.

Nicole revealed in early 2024 that she was going through cancer … after which numerous celebrities sent money to support her during the difficult time.

She’s provided updates on her cancer battle over the last couple years … including letting fans know that she had a “full complete response” to chemotherapy last year. She did say she would need the mastectomy in the future.