Dark blackish/purplish/redish toilet water

For the past 4 weeks or so I have noticed that during each week I will have one bowel movement in which the toilet water will be a very dark blackish/purplish/redish colour. The stool that I poop out will sometimes be formed (but disintegrate once in the water) or will come out mushy. When looking at the formed stool that is in the dark water, it is a normal brown colour with no white mucus around it. After wiping myself, there will be no red blood on the toilet paper, just the normal thing I usually see.

 Here's where it becomes even more confusing... this dark water BM will only occur ONCE every week (on a random day). All other BMs for the week (even any additional BMs I have on the same day of the dark water BM) will be normal, with no blood or mucus. Over these 4 weeks I have had slight lower abdominal pain (which my GI attributes to IBS) and no blood or mucus. BMs have averaged around 2 - 3 times a day (which has always been the usual for me). I have not consulted my GI over this issue yet but I will the next time I see him.     

 I am certain it has nothing to do with my diet because each time I have had the dark water BM my diet has been different. I have also not taken anything to make my stool a dark colour (such as blueberries). Originally I thought it was the Salofalk 1.5g granules (twice daily) I had started 4 weeks ago so last week when I had the dark water BM I stopped the Salofalk granules. However, today I had another dark water BM (after 6 days of stopping the Salofalk) so I doubt it is the Salofalk.

 As I said, the most confusing part is how it only occurs once a week...

 Anyone have any ideas? I am going in for a colonoscopy on the 10th of Jan to see if there is anything wrong.

P.S My history: Was diagnosed with UP on 1st of October 2010 after 6 months of slight bleeding with no other symptoms. Have since been taking suppositories and enemas to reduce inflammation. Most recent colonoscopy was on 30th November. States that there is slight inflammation on cecum and in the rectum.

The odd thing is that the blackish water occurred prior to enema usage :'(

yep, I'll try to get my signature done.

I'd say bleeding from UC ..if the mucosal layer is fragile, it'll bleed. With rectal inflammation, constipation...bms might not be as often and if one does have a period of more bms, bleeding can occur and the blood pools somewhat..sitting for a longer period of time and looks more purple (when mixed with mucus).

When you go, that would come out first....then when you have your bm, it kind of cleans it out.

To me, I'd see it strictly as UC related...it doesn't seem to be a hemmie or fissure since you'd definitely have more blood on the tp.

You need to get back on an oral 5ASA for sure. Maybe Pentasa..

How long have you been on the Pentasa supps? (put in signature when you started them)
How long have you been on the Salofalk (a week?). (put the date when started)

Thanks for the signature....muchly!
Also add what supplements and if you're doing fibre and probiotics.
Demanding aren't "we"..lol.

q

Hi Quincy. I'll update my sig. I've been on the Pentasa supps for 3 months now. As for the Salofalk enemas, I've been on them for roughly 2 weeks. I was on the oral Salofalk granules for about 3.5 weeks but the purplish water still occurred. Good thing I have a colonscopy coming up in 2 weeks. Can get the thing 'scoped' out.

Hi Zippy. No I am taking a probiotic called 'Inner health plus'. Not sure If they sell it anywhere else other than Australia. Could that be causing the funny water?

So max, what did it turn out to be? Im having the exact same issue, normal stools but black water around them...been googling for month and first thread i found with exact same thing

I had this happen in the past when I was using enemas nightly. The toilet water would be a dark purple.

Inflammation at the Cecum and Rectum (5 feet apart), does not make sense for UC.

UC ulcers and erythema (the 2nd degree burn type redness) are 'circumferential' and 'continuous', and go in an upward distribution. No gaps between areas. No patches.

There should be no 5 foot "gap" like that in UC.

Are they sure you do not have CD or Indeterminant Colitis?