Hemorrhoids, often referred to as piles, are swollen veins located in the lower rectum and anus, similar to varicose veins. These blood vessels can become stretched and irritated, particularly during bowel movements, due to thinning of their walls. Although not a serious condition, hemorrhoids can cause discomfort and are a common cause of rectal bleeding. Fortunately, many cases resolve on their own, while treatments can also be beneficial.
Hemorrhoids are highly prevalent, particularly among older individuals. Approximately 1 in 20 people in the US experience them, with over half of individuals over 50 affected.