15 Warning Signs of Colon Cancer | Colon Cancer Symptoms

2Melena

It’s another type of hemorrhage in your gut, but this time the source of the hemorrhage is located in the ascending colon or somewhere far from the rectum. The blood coagulates and undergoes a series of changes as it passes through your colon, and becomes black, similar to coffee grounds. Sometimes, people fail to notice the characteristic color of melena, but they detect a foul smell in their stool, which comes from the blood, which is broken down by your enzymes and your healthy intestinal bacteria. Other possible causes of melena are peptic ulcers, and even epistaxis, which is the clinical name for nosebleeds.