A few years ago, my doctor prescribed Oxycodone for my herniated disc in my back. I only take it when I am barely able to move. So the first time this happened, I took one 10mg tablet in the morning, and one in the evening for 3 days, after that the pain was bearable and I took tylenol instead. However, during those 3 days, I did not have a bm and when I finally was able to go, I was constipated and had to push and when I was done, there was blood in the toilette and on the paper. The blood was bright red. So the same year, it happened again, had rectal bleeding only have being constipated and the doctor told me it was due to the Opioids and that they can cause constipation. This has happened a few times over the years and each time I told my Dr and she was not concerned. However. last Wednesday, I had extreme back pain, so for Wed, Thurs, Friday I took 2 pills per day and then stopped. On Monday I had a bowel movement, again with blood. I wasn't concerned as I remember what my Dr had said. The only time I've had rectal bleeding is when I've taken those tablets and been constipated. So just this past Monday as I said it happened again, but then on Wednesday when I had a bm, which was loose, I had bright red blood again in the bowel and on the paper..I started to panic a bit and called my Doctor. She was able to see me that afternoon. I told her what happened and she said she'd check and see if she could see a problem. Well turns out, (which I knew already) I have a small exterior hemorrhoid. She said it looked swollen and looked like someone has rubbed sand paper on it and that this was the most probable cause of the bleeding. I said no, that my stool had blood in it and that it wasn't just on the paper. So she did a digital rectal exam and found nothing out of the ordinary. Again, she said probably, from the loose stools I had following the constipation and that my colon was irritated. Is this even possible?? I again said, I know you are the doctor but there was blood on the stool and in the bowel and when I wiped so I asked her if I could have a colonoscopy since I just turned 49 and thought it was a good idea. She agreed and I have to call on Tuesday to schedule one. My question is this, is rectal bleeding always cancer?? I am so freaked out now and having panic attacks!! It happened again today, I am having bouts of diarrhea, and when I wipe there is blood, and some in the bowel. This has never happened except after taking those tablets and being constipated and I am so worried. Would greatly appreciate some feedback on this. I am going to the doctors, I am on top of this, I will have the colonoscopy but I am really scared. The doctor does not seem too concerned, told me to wait and see but as I said I insisted on getting a colonoscopy. I am otherwise healthy, no pain, no weight loss.