Colon cancer is a form of malignancy in the large intestine. It initiates as a benign colon polyp (cluster of cells) and then suddenly transforms into a malignant tumor. Mutation in colon cells is the most common reason behind colon cancer. Individuals with a family history, or are aging (above 50 years), or of African-Americans lineage, or consume low-fiber, high-fat diets have a high risk of developing this malignancy. Let’s have a look at the common symptoms of colon cancer to be cautious.

1. Changes in Bowel Movements
   When colon polyps become cancerous, they start initiating changes in bowel habits. Patients complain of frequent stomach upsets, and intermittent constipation and diarrhea. It continues for a prolonged period, even after taking prescribed medications. The stool may become thinner and the frequency of visiting the toilet may also change. The malignancy impairs the functioning of the large intestine, and the body is unable to excrete the stool completely.
2. Abdominal Cramps
   Frequent abdominal cramps without any stomach infection are one of the most common symptoms of colon cancer. Individuals might experience bloating and stomach ache due to hemorrhoids, indigestion, and irritable bowel syndrome. However, if it becomes a regular affair, then it can be a warning sign of colorectal cancer. It is better to visit a gastroenterologist for a detailed investigation of the digestive system. In most cases, early diagnosis can help to completely cure the colon cancer.
3. Blood in Stool
   Many colon cancer patients experience the presence of blood in stools. One may either notice bright spots mixed with the stool (presence of fresh blood) or a dark tarry appearance on the fecal matter. Stool colordepends on the location of the malignant tumor in the large intestine. Oncologists prescribe a fecal occult test to find out the exact reason behind the source and detect the site of bleeding.
4. Rectal Bleeding
   Along with blood in the stool, some patients complain of rectal bleeding as one of the common symptoms of colon cancer . They notice blood in the toilet paper just after using it. However, this symptom is also common during hemorrhoids. A colonoscopy can detect the actual reason behind the bleeding.
5. Unexplained Weight Loss
   If a person loses more than 10 pounds of weight within six months, then there might be a serious medical issue he or she is suffering from. Malignant cells divide very fast and consume a significant share of the body’s energy. The immune system also utilizes a substantial amount of energy in fighting with the disease. This leads to unintentional weight loss, along with extreme fatigue and weakness. Most types of malignancies, including colon cancer, cause significant weight loss among patients in advanced stages.

All in all, keeping an eye out for these common symptoms of colon cancer can help one get an early diagnosis . It can also improve chances of getting the right treatment.