Depends on when they catch it and why they remove it. If it has burst or gotten infected, it can be pretty rough.
Mine actually blew up. Well, more like a slow leak. During the day, I began to feel nauseous, and then, that night, I began to vomit as violently as I’ve ever vomited before or since. By morning, a subtle band of pain around my mid-section gradually worsened until I couldn’t move. Had to roll off the sofa and crawl to the phone to dial 911. Bad stuff. Lucky to be alive. Also developed a staph infection from the removal operation that also nearly killed me.