Manager Ron Roenicke said Wednesday that the polyp was discovered during a routine colonoscopy. The veteran is expected to be in camp by Friday's mandatory reporting deadline.
Roenicke says he spoke with Ramirez this week. He says Ramirez is swinging a bat again, but can't pinpoint when he'll be ready to play in games.
Milwaukee plays its first spring training game Feb. 27.
The 35-year-old Ramirez is coming off a left knee injury that limited him to 92 games last season. The career .285 hitter had 12 homers and 49 RBIs in 2013.
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