Gastric Ulcer And Black Stool: What You Need To Know

A gastric ulcer typically involves minor bleeding that is not enough to cause visible black stool. In most cases, when the blood loss ranges from 5ml to 50ml, it results in a positive fecal occult blood test without any noticeable change in stool color. This means the blood cannot be seen with the naked eye and is only detected through laboratory testing.

Significant bleeding usually occurs when blood loss exceeds 50ml but remains below 500ml. At this stage, the presence of dark, tarry stools—medically known as melena—becomes apparent. The stool may appear black and sticky due to the digestion of blood by intestinal enzymes.

If blood loss surpasses 500ml, hematemesis (vomiting blood) may occur alongside melena. This level of bleeding can lead to more severe symptoms such as pallor, dizziness, fatigue, loss of appetite, weight loss, excessive sleepiness, fainting, and even shock if left untreated.

Prolonged or heavy bleeding from a gastric ulcer requires immediate medical attention. Early diagnosis and treatment are crucial to prevent complications and improve outcomes. If you experience any of these symptoms, especially black stools or vomiting blood, consult a healthcare professional promptly.

Understanding the signs and progression of gastrointestinal bleeding can help in identifying potential issues early and seeking appropriate care.