Abscess/ˈæbses/ Definition 1 of 2Pro Tip 1/3Medical Condition Used to describe a health issue – know it’s a medical term. The doctor diagnosed the painful swelling as an abscess. Pro Tip 2/3Typically Painful Understand that an abscess is often associated with discomfort or pain. He couldn't sleep because the abscess on his leg was throbbing. Pro Tip 3/3Requires Treatment An abscess usually needs medical attention or surgery. The abscess was so severe that it needed to be surgically removed.