How is rectal bleeding (positive fecal occult blood test) due to proctitis treated?

Nowadays, many people are fond of spicy and stimulating foods such as hotpot and spicy skewers, which can lead to a range of anorectal problems. So, how is rectal inflammation with positive fecal occult blood treated?
　How to Treat Rectal Inflammation with Positive Fecal Occult Blood

If the fecal occult blood test (FOBT) yields a positive result, repeated testing is required before initiating targeted treatment. If FOBT results remain persistently positive, patients should seek medical evaluation for further upper gastrointestinal endoscopy (gastroscopy) and lower gastrointestinal endoscopy (colonoscopy) to identify the underlying cause of the occult blood. The primary therapeutic approach involves identifying the source of bleeding in the stool. For example, if gastritis or peptic ulcer disease is diagnosed, proton pump inhibitors (PPIs) such as omeprazole or pantoprazole—or gastric mucosal protectants—may be prescribed. If polyps are detected, they can be removed via gastroscopy or colonoscopy. Malignant tumors generally require surgical intervention.

A positive fecal occult blood test indicates the presence of blood or red blood cells in the stool that are not visible to the naked eye or under microscopic examination. However, hemoglobin released from lysed red blood cells—specifically its heme component containing ferrous iron—can be detected by chemical or immunological occult blood assays. A positive FOBT may reflect bleeding anywhere along the gastrointestinal tract—from the oral cavity, nose, esophagus, stomach, intestines, to the anus. Typically, bleeding exceeding approximately 5 mL is sufficient to yield a positive FOBT result. Common causes include gastrointestinal hemorrhage due to peptic ulcer disease, gastric mucosal injury, gastrointestinal malignancies, colitis, and Crohn’s disease. Additionally, dietary factors and medications may produce false-positive results: consumption of animal organs (e.g., liver), pork or duck blood, or large quantities of spinach can trigger a positive FOBT. Similarly, iron supplements and bismuth-containing preparations may also interfere with test accuracy. Therefore, patients are advised to avoid animal blood products, organ meats, and iron supplements for at least three days prior to undergoing FOBT.

In daily life, individuals should maintain a light, bland diet and avoid spicy or irritating foods. We hope this information proves helpful to you.