Retired tennis star Serena Williams says she recently had a branchial cyst "the size of a grapefruit" removed from her neck.

Williams detailed her experience with the identification and removal of the growth on TikTok.

"I feel real happy to have worked with some great doctors," Williams said on the video. "A little scared here, but excited to be going to the next steps of healing and doing well."

According to Williams, she first had doctors look at the growth in May, at which time they deemed its removal an elective procedure.

The cyst continued to grow, and although a biopsy found the growth negative for cancer, doctors later recommended she have it removed, according to Williams.

"I am feeling so grateful, and fortunate everything worked out, and most of all I'm healthy," Williams wrote in her caption to the video.

In a separate post, Williams expressed regret that she was unable to attend the 2024 Glamour Women of the Year awards or celebrate Thursday retirement announcement made by Spanish tennis star Rafael Nadal, but noted that "health always comes first."

Williams stepped away from professional tennis in August 2022 after winning 23 Grand Slam singles titles in her career.

She also won 14 major doubles titles with her sister, Venus Williams, as well as one Olympic gold in singles and three in doubles.

The former world No. 1 parted with her playing career after the 2022 U.S. Open in part to spend more time with family including her daughter, Olympia, she told Vogue's Rob Haskell that year. Williams since welcomed her second child, Adira, in 2023.

Williams' recent video, which showed the tennis legend both before and after undergoing the procedure, concluded with her going to the American Girl doll store with Olympia.