I am a 45 year old male, fairly good shape, no illness to speak of.
About a week ago, I noticed a small amount of blood after a bowel movement. After the 3rd day of noting the blood, I went to my GP who did a CBC (negative), and a DRE (didn't feel anything). She told me it was probably hemorrhiods, but watch the bleeding.
I went to the drug store a couple of days ago and got a home FOBT. Althiough I thought I noticed a little red in my stool, the FOBT came back negative for the past 4 days. This this morning, it came back positive, eventhough I didn't notice any blood.
The only symptom I have, besides the blood, is a little pressure on my anus when I sit.
Everything I read points me to hemorrhoids, but I am still a little concerned. Any ideas?
If you notice a small amount of bright red blood that is not mixed with your stool, and particularly if it follows bouts of constipation or straining to pass your stool, then the odds are that it is the result of hemorrhoids (or, less likely, an anal fissure). However, it is impossible to rule-out a more ominous explanation through an Internet-based discussion, or through a CBC, or even through a DRE that did not reveal any apparent positive findings.
Given that you are entering the age range where colorectal cancer begins to become more common, I would recommend that you undergo an endoscopy. (The "gold standard" evaluation would be a colonoscopy.) If you were referred to me with the same complaints, I would perform a colonoscopy to rule-out colorectal cancer and, assuming no cancer or advanced adenomatous polyps were identified, to definitively identify the source of your rectal bleeding.
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