Dream interpretation, come on.

In fact, if I tell you one thing, you will understand. Remember when I was a child, I always had to find a place to pee when I slept, find a place to pee immediately, and suddenly found myself wetting the bed?

So, what you dream about is the peristalsis of the second half of your intestine, which stimulates your nerves to have a dream consciousness. Generally speaking, adults can't go to the toilet immediately, but they will definitely go to the toilet after waking up.