Black stool is often caused by bleeding in the upper gastrointestinal tract, specifically in the esophagus, stomach or small intestines, notes Healthgrades. Medication and other ingested substances, including black licorice, blueberries, iron supplements, lead and bismuth medicines such as Pepto-Bis
Colon cancer affects the stool by causing alternating diarrhea and constipation, according to the American Cancer Society. This type of cancer can also cause narrowing of the stool and blood in the stool.
Colon cancer is cancer of the colon, according to Mayo Clinic. Colon cancer is also known as colorectal cancer, which refers to cancers that start in the colon and rectum. The colon is a part of the digestive system also known as the large intestine.
The signs and symptoms of colon cancer include rectal bleeding, diarrhea, constipation and chronic stomach discomfort, according to Mayo Clinic. However, symptoms can vary depending on the extent of the condition. In many cases, individuals with colon cancer do not experience any symptoms of the con
According to Mayo Clinic, symptoms of colon cancer include rectal bleeding, persistent abdominal discomfort, unexplained weight loss, weakness or fatigue, the feeling that one's bowels do not completely empty and notable changes in bowel habits, including diarrhea or a change in consistency of stool
Mayo Clinic explains that doctors are uncertain of the cause of colon cancer. Symptoms of colon cancer include blood in the stool, weight loss that cannot be explained, reoccurring cramps in the abdomen, variations in bowel movements and fatigue. If found early, colon cancer responds successfully to
The treatment options for colon cancer are surgery, chemotherapy and radiation, according to the American Cancer Society. The type of treatment depends on the stage of the cancer.
There are no symptoms during the early stages of colon cancer, according to the American Cancer Society. For this reason, the ACS recommends doctors screen men and women for this disease when they reach age 50. Those with a family history of this cancer begin screenings at an earlier age.
The most common symptoms of colon cancer include blood in the stool, changes in bowel behavior such as diarrhea or constipation, unexplained weight loss, or general fatigue and weakness, according to Mayo Clinic. Many people with early-stage colon cancer experience no symptoms.
Age, race, gender, environment, diet and genetics are causative factors in the development of colon cancer, according to About.com, as are obesity, not getting enough exercise, smoking and polyps. Drinking alcohol can also place a person at risk of contracting this type of cancer.