I'd imagine so. They have to make an incision in your belly, regardless of what they're taking out. When my wife had her colon surgery, the docs were able to do it with "keyhole" techniques. Even then, she was in hospital for about 10 days afterward. When she was sent home, she was told to take it very easy for the next 10 weeks — don't lift anything more than 10 pounds, stay off your bike etc. But her energy levels came back to more or less normal after about three weeks. Given his size, I don't think Rob is a candidate for keyhole surgery, so his recovery might be longer. Still, I think he'd be feeling strong enough to return phone calls and pose for selfies at the mall after a few weeks. And that's what it's all about for Rob.