Xie Xiao went back after his grandmother had fallen asleep that night.
"Grandma has to stay in the hospital," Yang Lan said, "just in time for a full-body check-up."
In fact, the elderly lady used to have a full-body check-up every year.
But like all old folks, she found it troublesome and later switched to once every two years.
Now, it was even less frequent, only every three years, with the last check-up being three years ago, just when Xie Xiao had started his freshman year of college.
Back then, his grandmother was indeed very healthy, with minor issues but no major problems.
In the last three years, nothing much had happened, so Grandma didn't bother to go for another check-up.
Because of this, Teacher Xie almost got into a quarrel with his older brother.
