Injection drug use-associated presents is a unique entity. The demographics of those affected and the clinical presentation are markedly different from those with endocarditis due to other causes. This group presents with a high proportion of right sided valve involvement, distinct pathophysiology, and a more varied array of infectious causes. The best management of these patients regarding medications and surgery remain hotly contested. The increased use of oral antibiotics and novel treatment techniques may expand safe and effective treatment for this group of patients.