Had one removed Dec 2012, kidney cancer. Robotic Surgery. Spent one night in the hospital. Very sore for the first couple of days. Back to work in a week but I did get tired pretty quick. Business trip to Brazil three weeks after the surgery. Took a bit to get my stamina back and had problems with elevated blood sugar after the surgery. Diet change got the blood sugar under control. Knock on wood this December will make 5 years cancer free.