sentences:  Bleeding peptic ulcers require endoscopic treatment if they show evidence of high risk stigmata of re-bleeding, such as evidence of active bleeding or oozing on endoscopy or the presence of a visible blood vessel around the ulcer.The alternatives to endoscopic clipping of peptic ulcers are thermal therapy (such as electrocautery to burn the vessel causing the bleeding), or injection of epinephrine to constrict the blood vessel.Comparative studies between endoclips and thermal therapy make the point that endoclips cause less trauma to the mucosa around the ulcer than electrocautery, but no definitive advantage to either approach has reached consensus by gastroenterologists.