Piles are caused as a result of increased pressure on the blood vessels in your bottom, there are two forms of piles.
Internal piles, which are the most common, and external piles which protrude from the back passage. Both sets of piles can cause pain, itching and can even bleed. Increased pressure can be caused by many things, for example, constipation, pregnancy, childbirth, lifting heavy loads or being overweight.
If you are wondering if you have piles, then the most common symptoms to look out for are itching or soreness, discomfort when on the loo, sharp pains up the bottom, bulging feeling inside or hard lumps protruding from the back passage.