What are the symptoms of stomach cancer?

What are the symptoms of colon cancer, and what are the symptoms of stomach cancer?

• How can you know if you have one of these diseases? what is the survival rates for both diseases?

• Answer:

  Regrettably, both often are asymptomatic. Both can present with anemia or hematochezia. Anemia in a man should always place a GI mass high in the differential diagnosis. Classically, masses in the colon will present with red blood per rectum is it's bleeding fast enough, weight loss. If it's large enough, then it can lead to bowel obstruction. Gastric malignancies are less common in the US (opposite of many Asian countries) and present with darker-colored blood in the stool, if it's visible. More often than not, anemia is detected on a blood test and leads to a stool guiac test which uncovers a bleed. The the patient will require a scope either from below or above.