What causes dark stool during pregnancy?
Patient: Hi, I am currently 12+ weeks pregnant. I noticed my bowels have been dark (towards black) the past couple of days. I had constipation problems once awhile but these 3-4 days it has not occured. Passing bowels have been pretty easy. I am taking Folic Acid pills since I am pregnant and this week, I ve also started taking DHA, Calcium, Obimin supplements. May I know what is the cause of dark stools and would this be dangerous to my baby? Please advice. Thanks. Janice Doctor: Hello dear,I understand your concern.In my opinion the colour and consistency of the stools depend on the diet and also on medication if taking any.Even in case of piles or anal fissure which are associated with constipation there is fresh blood in stools.So the dark.colour might be due to vitamin supplements.Even this type of stools is common during the iron tablet intake. Nothing to worry.As constipation is routinely seen in pregnancy  take adequate fluids upto 3 litre per day and high fibre diet to prevent constipation.Hope this helps.Best regards ..Dr .Srilatha