Rectal cancer is a type of cancer that occurs in the rectum, the final section of the large intestine before the anus. It often begins as polyps that can become cancerous over time.
Risk factors include age, family history of colorectal cancer, inflammatory bowel disease, and lifestyle factors like a high-fat diet and smoking. Symptoms can include rectal bleeding, pain, changes in bowel habits, and unintended weight loss.
Diagnosis usually involves colonoscopy, biopsy, and imaging studies.
Treatment typically includes surgery to remove the tumor, along with chemotherapy and radiation therapy, depending on the stage and location of the cancer.
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