7. Unexplained Anemia
Anemia refers to a low red blood cell count in the body. The hemoglobin in red blood cells carries oxygen throughout the body.
Symptoms of anemia, such as pale skin, a fast or irregular heartbeat, shortness of breath, dizziness, and cold hands and feet, should not be taken lightly.
Unexplained anemia may be due to colon cancer. Typically, cancer in the right-side of the colon causes iron-deficiency anemia. This happens when tumors start bleeding slowly into the digestive tract, causing blood loss over time.
A 2008 study published in the British Journal of Cancer confirms a strong connection between anemia and cancer, with the risk rising as the hemoglobin level falls. This study also confirms iron deficiency as an independent predictor of cancer.
If you have signs of anemia, consult your doctor immediately to get your hemoglobin level checked.
8. Unexplained Weight Loss
If you are above the age of 50 and rapidly losing weight without any known reason, it is a cause for concern. Sudden, unexplained weight loss can indicate a serious health problem, including colon or rectal cancer.
A 2006 study published in the Annals of the Royal College of Surgeons of England found that unexplained weight loss happens mostly during advanced stages of colorectal cancers.
The growth of a tumor can lead to loss of appetite, as cancer can affect your metabolism, thus causing weight loss.
If you are rapidly losing weight without changing your diet or exercise routine, discuss this with your doctor.