Morbid obesity is an epidemic in this country. An increasing number of patients are undergoing weight loss surgery in an effort to combat the negative physical and psychological impact of morbid obesity. Fueling the increasing interest in surgical treatment of morbid obesity has been the development of new laparoscopic techniques. There are several surgical approaches to morbid obesity, and each has its own unique set of risks and potential complications. As more patients have weight loss surgery, clinicians working in the emergency department will frequently encounter complications of these procedures. To ensure timely diagnosis and optimal care, clinicians should be familiar with the standard weight loss approaches and the potential complications of these interventions.