What is a seroma?
A seroma is a collection of serum (also known as lymph fluid) within a cavity inside the body. Serum is the yellowish liquid portion of blood that remains after the red blood cells (which transport oxygen to the body’s tissues), and white blood cells (which fight infections) have been removed. A seroma can occur after liposuction. It is generally a nuisance, but not a serious complication. Without treatment, a seroma will usually resolve slowly over several weeks to many months. To accelerate the disappearance of a seroma, the surgeon may remove the serum by inserting a needle and draining the seroma into a syringe. Seromas may be caused by the use of large diameter liposuction cannulas, or excessively aggressive liposuction in a localized area of fat. Seromas are a common adverse result of ultrasonic assisted liposuction (UAL). Seromas rarely occur when surgeons use the tumescent liposuction with microcannulas and use the “open-drainage” technique for post-liposuction care.