Angina bullosa hemorrhagica: A case series of a rare entity

The term “Angina bullosa hemorrhagica” (ABH) refers to the sudden emergence of oral blood-filled vesicles and bullae that are not related to systemic illnesses, vesiculobullous disorders, blood dyscrasia, or any other recognized cause. It presents as sudden-onset hemorrhagic bullae that burst spontaneously, causing superficial erosions that heal on their own without leaving any scarring in a few days. The most frequently recognized triggering factor seems to be trauma; however, the fundamental tissue abnormality is still unknown. In this report, we are presenting three cases diagnosed clinically as ABH in an effort to highlight this rare cause of oral hemorrhagic bullae, which is a self-limiting disease.