Piles, also known as hemorrhoids, are inflamed and swollen veins that develop around the rectum and anal area. There are two types of piles - internal piles form inside the lower rectum, while external piles form around the entrance of the anus. Piles are one of the most common health conditions worldwide, affecting almost half of all adults by the time they reach 50 years old, and home remedies like sitz baths, tea tree oil, and garlic can effectively treat piles.