These are one of the funniest kind of jokes because the Medical profession is otherwise a serious profession.
Good News / Bad News

A man goes to his doctor for his routine examination. After examining the man, the doctor says, "I have some good news and some bad news.

Which would you like to hear first ?"

The man says, "I don't like the sound of that. Give me the bad news first."

The Doctor says, "OK. You have a terrible, debilitating illness. You will be dead within three months. In those three months, you will lose your short term memory, then your long term memory, followed by the use of all four limbs and control of your bowels and bladder. You will quickly become a burden to your family and caregivers until you die a helpless mass."

The man says, "Oh my God, that's the worst news I've ever heard. What could possibly be the good news ?"

"Did you see that beautiful blonde nurse who brought you into this examination room?" asked the Doctor.

The man replies, "Yes".

"The good news," says the Doctor, "is that I'm sleeping with her !!"