The colon is a part of the large intestine and absorbs nutrients and water from ingested food as it passes through the digestive tract. Colorectal cancer---which is also called colon cancer---occurs when cancerous cells begin to grow and multiply within the colon. An estimated 7 percent of people in the United States have colorectal cancer, as reported by the University of California San Francisco Medical Center (UCSF). Identifying the signs and symptoms of colorectal cancer early on can help ensure that you receive curative treatment.
Abdominal Discomfort
If you have colorectal cancer you may develop extensive abdominal discomfort that worsens as the disease progresses. Symptoms of abdominal cramping or bloating may be painful or uncomfortable to certain people. Your abdomen may feel abnormally full or may be tender to the touch. Though these symptoms may occur for a variety of reasons, persistent abdominal discomfort should be discussed with your doctor.
Diarrhea or Constipation
Colorectal cancer can cause changes in your bowel habits. You may experience frequent diarrhea. Constipation---a condition that can make it difficult or impossible to pass a stool---may also be a sign of colorectal cancer in certain people. If you have colorectal cancer, you may also notice that your stools contain blood or appear darker than normal. Some may also experience rectal bleeding as a result of colorectal cancer. If you develop any of these symptoms seek medical care immediately to ensure that you receive timely and appropriate treatment.
Weight Loss
Cancer of the colon can interfere with the way in which nutrients are absorbed by the body. Symptoms of frequent diarrhea, constipation or abdominal pain may decrease your appetite and may cause significant weight loss. If you experience unexplained weight loss, talk with your doctor to receive further medical evaluation.
Fatigue
If you have colorectal cancer, you may experience abnormal fatigue or weakness. Severe fatigue and muscle weakness may make it difficult for you to perform your daily tasks. If you experience prolonged or abnormal fatigue or weakness do not hesitate to discuss these symptoms with your primary care physician.
