Colon cancer, also known as colorectal cancer, is a type of cancer that starts in the large intestine (colon) or the rectum. It is one of the most common types of cancer, affecting both men and women. In the United States, it is the third leading cause of cancer-related deaths. It is important to be aware of the warning signs of colon cancer in order to catch it early and improve the chances of successful treatment.

Unexplained weight loss is often a sign of a serious health issue, including colon cancer. If you are losing weight without trying, and have not made any changes to your diet or exercise routine, it could be a warning sign of colon cancer. This is especially concerning if the weight loss is significant and occurs over a short period of time.

Persistent abdominal discomfort, such as cramps, gas, or pain, may be a sign of colon cancer. This discomfort may also be accompanied by bloating or a feeling of fullness, even after not eating for a while. If you experience ongoing abdominal discomfort that is not relieved by passing gas or a bowel movement, it is important to speak with a healthcare professional.

Changes in bowel habits, such as diarrhea, constipation, or narrowing of the stool, that last for more than a few days could be a warning sign of colon cancer. You may also notice a feeling that your bowel does not empty completely. If you experience any significant changes in your bowel movements, it is important to discuss them with a doctor.

One of the most common warning signs of colon cancer is blood in the stool. This blood may be bright red or very dark, and it may be present in the stool or on the toilet tissue. If you notice blood in your stool, it is important to see a doctor right away, as it could be a sign of a serious issue, such as colon cancer.