Piles are abnormally swollen veins inside the rectum and anal canal.
They are classified into two types:
- Internal hemorrhoids: These swollen veins lie inside the rectum prior to the anal sphincter.
- External hemorrhoids: These swollen veins develop under the skin around the anus and lie beyond the anal sphincter.
Internal Piles are further graded into 4 types:
|Grade 1||Small swellings inside the anal canal. They cannot be seen or felt from outside|
|Grade 2||Larger and partly protrude outside the anus while passing motions. However, they immediately spring back inside on their own.|
|Grade 3||Protrude outside the anus while passing motions and do not return inside on their own. However, they can easily be pushed back inside with one's fingers.|
|Grade 4||Permanently hanging outside the anus and cannot be pushed back inside. They can sometimes become very large and bleed.|