23 Signs And Symptoms Of Colorectal Cancer

9. Nausea

Most conditions and diseases affecting the gastrointestinal system present with nausea, which is a physiological reaction of the body to unwanted physical, chemical or infectious agents. The colon and rectum, being organs highly-involved in the passage of waste material coming from digested food, can also cause nausea when afflicted with cancer. In most cases, colorectal tumors wreak havoc on the proper functioning of the gastrointestinal system, particularly when they obstruct the natural passage of stool, causing the buildup of gas or the backing up of waste. When this happens, patients find it difficult to keep down any food, resulting in abdominal discomfort,and bloating, making patients feel sick.