This is one of the most painful and uncomfortable problems experienced by many people which makes them disinterested and incapacitated in their daily activities.First and second degree piles remain inside the anal canal and patients only experience bleeding, no pain.

The third degree piles come out during straining and go back inside after urge of defecation over. It is also caused by raised intra abdominal pressure as in a case of pregnancy or abdominal tumors.