The rectum, the last 6 - 8 inches long passageway of the large intestine is commonly used to get rid of solid waste. The anus is the rectal opening through which the fecal matter is disposed off the body. The anal canal is the final one inch part of the rectum that connects to the anus. Hemorrhoids is a condition in which the veins in the anal canal appear swollen. The inflammation of the veins in the anal cavity narrows the passage of the lower rectum, in turn limiting movement of stools. The stools may also damage the enlarged veins while moving through anal canal. As a result, the veins may bleed causing painful bowel movement. Frequent itchy sensation in the anal area followed by blood in stools are some of the most common symptoms of hemorrhoids.