What is lower gastrointestinal bleeding?
Lower gastrointestinal bleeding (LGIB) is loss of blood from the lower part of the gut, namely the large intestine and to a lesser extent the ileum of the short intestine. Although lower gastrointestinal bleeding is less common than upper gastrointestinal bleeding, it can lead to significant blood loss over time as many patients are not aware of the condition or do not seek medical assistance. Bleeding from the lower gut is not a disease on its own but rather a symptom of some underlying disease. It can arise with common conditions such as hemorrhoids (piles) or may be a sign of serious bowel conditions like colon cancer.