Ascending colon polyps are usually more than 1cm in diameter, and if the diameter is more than 2cm, the chance of cancer will increase significantly. Ascending colon polyp belongs to a relatively common clinical disease, mainly due to inflammation stimulation and formation, most of them are benign lesions, but do not rule out the possibility of malignant changes. If the diameter of ascending colon polyp is more than 1cm, the chance of cancer is generally 5%~8%, and if the diameter of ascending colon polyp is more than 2cm, the chance of cancer can reach 20%. If you want to know whether it is cancerous or not, you need to do pathologic tests to make a clear diagnosis. If you have ascending colon polyps, patients should pay attention to it, it is recommended to go to the hospital in time to do colonoscopy to remove, to prevent cancerous changes and jeopardize the health of the body.