Adam and his wife were living in a rural place. On a certain day, Adam wife fell ill and he called the local doctor. When the doctor picked up, he said, "Doctor, my wife is ill. She might have appendicitis."

"This cant be possible! I took out her appendix two years ago myself," the doctor explained.

When diagnosed, Adam wife was found to have appendicitis. How can this be possible ?

This is possible because Adam had remarried.