Black stools suggesys that there was some bleeding in your intestines.
It should clear off by itself. If you have continuous problem beyond 2 days, please get a colonoscopy
& upper G.I. endoscooy done to find the source of bleeding and specific treatment can then be advised.
Take a blood test
of Bleeding time
, Clotting time and INR for finding if there is any derangement in your blood clotting mechanism.
wish you good health.
Dr. Pravin Gore
Laproscopic Colorectal Surgeon & Proctologist
mumbai - INDIA