Piles (Arshas) are swollen and inflamed veins around the anus or in the lower rectum. Rectum is the last part of the large intestine leading to the anus.
Piles are of two types viz. EXTERNAL PILES – which are located under the skin around the anus and INTERNAL PILES – develop in the lower rectum which may protrude or prolapse through the anus.
According to the severity of the prolapse of the internal pile masses through anal aperture they are further divided into 4 grades also.