I'm aware that I may have posted rather many links to Dr Albert Chung's YouTube channel recently, but I just can't resist posting one more - this time, it's about PAIN, a subject that many or most medical professionals, including proctologists, tend to steer well clear of, to the disadvantage of their patients. Here's Dr. Chung's take on the issue:
https://www.youtube.com/watch?v=ctOGbMXfJE4