Pictures: Hemorrhoids and Anal Fissure

	Internal hemorrhoids occur higher up in the anal canal, out of sight. Bleeding is the most common symptom of internal hemorrhoids, and often the only one in mild cases. View hemorrhoid gallery for detailed photos.
	External hemorrhoids are visible-occurring out side the anus. They are basically skin-covered veins that have ballooned and appear blue. Usually they appear without any symptoms. When inflamed, however, they become red and tender. View hemorrhoid gallery for detailed photos.
	Sometimes, internal hemorrhoids will come through the anal opening when straining to move your bowels. This is called a prolapsed internal hemorrhoid; it is often difficult to ease back into the rectum, and is usually quite painful. View hemorrhoid gallery for detailed photos.
	When a blood clot forms inside an external hemorrhoid, it often causes Severe pain. This thrombosed external hemorrhoid can be felt as a firm, tender mass in the anal area, about the size of a pea. View hemorrhoid gallery for detailed photos.
	Anal fissure. A thin slit-like tear in the anal tissue, an anal fissure is likely to cause itching, pain, and bleeding during a bowel move