6) Colored Stools
Although this symptom is not very common, if present, it may indicate that the disease has progressed. You may experience dark brown or black colored stools (looks like black tar) with normal frequency (no associated diarrhea or constipation). The black color is due to occult blood and shows that the bleeding point (stomach) is away from the anus (the exit point).
Of note, you will never experience fresh blood in the stools because that indicates that the bleeding point is near the anus. If you are experiencing this, it can’t be due to stomach ulcers and you may have some other gastrointestinal problems.
