15 Warning Signs of Colon Cancer | Colon Cancer Symptoms

Vomiting

Sometimes, tumors are large enough to cause an intestinal obstruction, and whenever that happens, you could start having violent bowel movements or no bowel movements at all, and severe episodes of nausea and vomiting. This is not common and usually happens in advanced stages of colon cancer, often when patients already know their condition and already started their treatment, which is why it should be distinguished from a side effect of chemotherapy and other drugs.