Got this question in an interview once. I just said I had taken time off for my health, and we moved on immediately.

Most people aren’t dicks. They’ll respect your privacy, because it’s unprofessional to pry. Even as an employee if you have a health issue, they aren’t obligated to know the specifics of it. You tell someone siloed off what the issue is, and they’ll communicate to everyone else that you had a serious injury and that’s it.

“I was fired from my previous job due to acts of drunken sloth and a little theft. Then I spent time on my couch, doing nothing but watching Starsky and Hutch reruns in my underwear, eating cold spaghetti-os from the can and drinking warm beer. Then when the welfare checks ran dry, I blackmailed a manager at the next job. He hired me, I did nothing, but he was replaced by someone who didn’t have anything I could dig up in his past quick enough. I can’t work with Tom Swift Jr. there, so I am applying here. Here is a list of my demands upon hire, and some background checks I ran on you. When do I start?”

– what these people think about a gap in your employment, possibly.