Hemorrhoids, also known as piles, are swollen and inflamed veins in the anal canal and lower rectum. They commonly result from straining during bowel movements or from increased pressure on these veins during pregnancy or obesity. Symptoms may include painless rectal bleeding, itching or irritation in the anal area, and pain or discomfort during bowel movements. Treatment options depend on the severity of hemorrhoids and can include lifestyle and diet changes, over-the-counter creams or suppositories, rubber band ligation, sclerotherapy, laser therapy, or surgery. Preventing constipation and practicing proper hygiene can help avoid hemorrhoids.