What are the symptoms of Colorectal Cancer?

The early stages of colorectal cancer often do not produce any noticeable symptoms, which is why regular screening is recommended. However, as the cancer grows and progresses, the following symptoms may occur:

Changes in bowel habits. This can include persistent diarrhea or constipation, a feeling of incomplete emptying, and changes in stool size and consistency. Some individuals with colorectal cancer may experience alternating episodes of diarrhea and constipation. 

Blood in the stool. Bright red blood in the stool or black, tarry stools can indicate bleeding in the colon or rectum. Blood in the stool might also be found on toilet paper after wiping.

Abdominal discomfort. Cramping, bloating, and abdominal pain can occur, especially if the cancer is obstructing the colon.

Weakness and fatigue. Anemia caused by chronic blood loss can lead to weakness and fatigue.

Unexplained weight loss. Weight loss without any changes in diet , physical activity or other reasons can occur in people with advanced colorectal cancer.

Nausea and vomiting. If the cancer is blocking the colon or rectum, nausea and vomiting can occur.

Iron deficiency anemia. This can occur due to chronic blood loss in the colon or rectum, that can cause fatigue, weakness and shortness of breath.

It is important to note that these symptoms can be caused by many conditions other than colorectal cancer, and not everyone with these symptoms will have the disease. However, if any of these symptoms persist or if there is a family history of colorectal cancer, it is important to see a doctor for evaluation.