It has been an ongoing controversy that people that have been deemed obese and have had a joint replacement surgery, are more likely to need blood transfusions, and face complications. However, with a close analysis, research has shown that they are at no greater risk than an individual of normal weight. It is believed that larger patients may have a bigger blood reserve, resulting in less blood loss. This new research has emerged from the statistics that around 79 million Americans are now obese, gradually increasing each year. During surgery, the main purpose is to get rid of the need for a blood transfusion. When a person undergoes a transfusion, they can suffer many detrimental effects. To form a precise conclusion, results would need to be collected from various surgeons, and a more vast group of patients.