You wake up one morning and feel something is swollen. It hurts, kind of throbs...
Can it be, ca,ca, cancer!?
You can't sit tight after thinking about it.
"What should I do? Oh, yeah I'll go see Dr.OK!"

---At Dr.OK's virtual consultation room---

"Please come in."

"Well, according to the interview sheet, the area around your anus has swelled up and hurt. Has there been any bleeding? Did the swelling occur overnight- nothing wrong before that?"

"It says here that you are worried about cancer. Even though a cancer develops quickly, it does not cause swelling overnight."

Diseases that cause sudden swelling and pain around the anus are usually one of the following:

thrombosed external hemorrhoids, incarcerated hemorrhoid, periproctal absces,

but let's see. Can you lie down sideways with your left side down on the examination table and show your bottom