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Hi there,This is Dr Basu, experienced Internal Medicine Specialist.I am here to address your concerns and provide great service.
Hemorrhoids can cause blood in stool commonly.
Internal hemorrhoids are not seen and cause painless bleeding.
Probably not concerning since you do have normal bowel movements.
Still, persistent symptoms require a colonoscopy to check for any inflammatory bowel disease like ulcerative colitis or crohn's disease.
Colon cancer risk is very low.Best wishes,It was my pleasure to help you today.If I have answered all your questions, Please rate my response Excellent (click on the 5th star).Please bookmark my profile for fast, reliable and authentic answers!This is the link to my profile:http://www.justanswer.com/medical/expert-mysticdoc/