A complication of peptic ulcers can include which of the following?

Hemorrhage is a known complication of peptic ulcers due to the potential for ulcers to erode into blood vessels. When an ulcer forms in the lining of the stomach or the first part of the small intestine, it can become deep enough to reach the underlying blood vessels. This erosion can lead to significant bleeding, which can result in hematemesis (vomiting blood) or melena (black, tarry stools), both of which are symptomatic of gastrointestinal bleeding.

Understanding that peptic ulcers can compromise the integrity of blood vessels is crucial for recognizing the severity of the condition. While other options like diarrhea, constipation, and jaundice can be associated with various gastrointestinal issues, they are not direct complications resulting from peptic ulcers. Hemorrhage is a serious medical emergency that requires immediate attention, making it the correct answer in this case.