Detailed answer

Dark spots on the skin, also known as hyperpigmentation, are generally not associated with colon cancer. Hyperpigmentation is typically caused by an overproduction of melanin, the pigment that gives color to our skin. Common causes of dark spots include sun exposure, hormonal changes, acne scars, and certain medications. However, it is important to note that colon cancer can sometimes cause symptoms such as rectal bleeding, changes in bowel habits, abdominal discomfort, and unexplained weight loss. If you have concerns about colon cancer or any skin-related issues, it is wise to consult with a healthcare professional for a proper evaluation and diagnosis.