See what Community Health says about Piles What Is Piles (Hemorrhoids)? Piles (haemorrhoids) are swellings that can occur inside and around the back passage (anus) and the anal canal, sometimes it includes painful stomach ache and back ache. Types of Piles (Hemorrhoids) Internal piles External piles Piles (haemorrhoids) are swellings that can occur inside and around the back passage (anus) and the anal canal, sometimes it includes painful stomach ache and back ache. Types of Piles (Hemorrhoids) Internal piles External piles Internal piles (haemorrhoids) are those that form above a point 2-3 cm inside the back passage (anus) in the upper part of the anal canal. Internal piles are usually painless because the upper anal canal has no pain nerve fibres. We have mild internal pile but it can graduate to severe one. We have mild and severe types of pile. Mild Internal piles are small swellings on the inside lining of the anal canal. They cannot be seen or felt from outside the anus
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