Piles / Hemorrhoids are swollen , enlarged veins that form inside and outside of your anus and rectum. They can be painful , uncomfortable and can cause rectal bleeding.

They are broadly classified into 2 types :

EXTERNAL HEMORRHOIDS :

Swollen veins form underneath the skin around anus. They can be itchy , painful and can cause bleeding sometimes.

INTERNAL HEMORRHOIDS :

Swollen veins form inside the rectum

They can cause bleeding and usually are not painful.