Common signs and symptoms of CRC include a change in bowel habits (such as bloody stool, unusually narrow stool, diarrhea, or constipation), bloating, gas pains, fatigue, vomiting, and unexplained weight loss. However, CRC may not cause symptoms, which is why colorectal cancer screening is recommended for everyone over the age of 45.[1]
What are the main signs and symptoms of CRC?
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•Last Updated: May 16, 2025
Common signs and symptoms of colorectal cancer (CRC) include changes in bowel habits, bloating, gas pains, fatigue, vomiting, and unexplained weight loss. However, CRC may not show symptoms, which is why screening is recommended for people over age 45.