Colon cancers are majorly responsible cancers for mortality. Any patient who presents with weight loss, abdominal pain, anemia should be investigated to rule out the disease. Investigations required include: 1) Blood workup: CBC, urine r/e, LFTs, serum calcium, clotting factors. 2) Ct-colonography is used to see mass and used when the patient cannot tolerate colonoscopy. 3) Colonoscopy to identify mass and obtain tissue for brushing, biopsy or resection 4) CT abdomen- pelvis to done to look for metastasis and lymph nodes.