You can have a colonoscopy with hemorrhoids, and a colonoscopy can further clarify the diagnosis. The typical symptom of hemorrhoids is blood in the stool, which can occur with hemorrhoids, but some diseases in the intestines can also be accompanied by blood in the stool. If there is blood in the stool, it can be diagnosed as hemorrhoids, but other diseases in the intestine, such as polyps in the colon, inflammation of the colon, or tumors in the colon, cannot be ruled out as being accompanied by blood in the stool. If you are cautious and want to further clarify the diagnosis, even if you have a clear diagnosis of hemorrhoids, you still need to have an e-colonoscopy. So having hemorrhoids can be done with a colonoscopy for further definitive diagnosis, and for patients with the condition, a colonoscopy will be recommended before having surgery.