raquel Colon cancer symptoms can vary, and early stages often present no symptoms. Common signs include persistent abdominal discomfort, such as cramps, gas, or pain. Changes in bowel habits, including diarrhea, constipation, or a change in stool consistency lasting more than a few days, are also common. Unexplained weight loss, fatigue, and weakness may develop as the disease progresses. Some people notice blood in their stool, which can appear as dark or bright red. A feeling of incomplete evacuation after a bowel movement is another symptom. If you experience any of these symptoms, it’s essential to consult a healthcare provider