Colon Cancer Colon cancer or colorectal cancer is the second leading cause of death from cancer and 15% of new cases of cancer is colon cancer. Cases of colon cancer today and in coming years is expected to increase. Therefore, public awareness of the threat this panyakit have increased since colon cancer is associated with the modern diet of fast food and unhealthy lifestyles. Cancer caused by exposure to carcinogenic substances that occur due to various habits or metabolic disorders such as those found in obesity and lack of exercise. Carcinogenic ingredients that are caused by smoking, eating foods high in fat, especially animal foods, fast food, lack of rest and lack of exercise. You should know that colon cancer is the most affected by carcinogenic substances. The exact cause of colon cancer are not known with certainty, but the food is an important factor in the occurrence of cancer. Risk factor for colon cancer is a high-fat diet, less mobile, age / aging, a history of colon polyps, family history, obesity, and smoking. Some of the signs and symptoms you should be aware of the existence of colon cancer is the presence of blood in the stools, change in bowel habit, lower abdominal pain that is not lost, dirt form a long thin as a pencil, abnormal stool tests, anemia, and weight dropped drastically. To detect colon cancer early, the patient should perform regular checks, especially in those at high risk and have a history of gastrointestinal disorders. Examination should have been started at the age of 30 years in Indonesia because of colon cancer more common in young people under the age of 40 years. Approach to colon cancer involves three steps, namely primary prevention, living the life that is in the form of avoidance of anticancer carcinogenic substances. Also conducted screening and early detection so that the cancer is, when it is formed, can be found as early as possible in order to do the best possible treatment and greater life expectancy. Secondary prevention, ie after cancer treatment, taken steps to prevent cancer recurrence (relapse). Adopting a healthy lifestyle is useful for preventing colon cancer, while early detection is necessary for the proper treatment of the patient can be done as soon as possible.