The URL https://superuser.com/questions/ask is saying go to the 'questions' controller and find me the 'ask' method which will then turn around and render a view back to the user. So in one way you're not actually navigating to a page, you're navigating to a programatic method located on the web server.
White Poop or Clay-Colored Stool. This type of poop can be described in many ways, including pale, clay-colored or even white. This white poop is present when the liver does not release enough bile salts into the stool in your intestines. This may occur due to bile duct blockages, gallstones or liver problems. Clay-colored or pale gray stool is usually a sign of a more serious problem.
A fecal occult blood test checks a stool sample for blood that can't be seen with the naked eye. Blood in the stool is a sign of bleeding in the digestive tract. This could indicate cancer, polyps, hemorrhoids, diverticulosis, or inflammatory bowel disease, also called colitis. fecal occult blood test uses chemicals to find out if there is blood in a sample of feces. If your test is negative, your result is normal. If your test is positive, you had blood from your digestive tract in your stool sample.