Jeffrey Alan Klein is an American dermatologist from Southern California, who described the tumescent technique for liposuction surgery in 1987,[1] which according to Jayashree Venkataram "revolutionized liposuction surgery" by "permit[ting] liposuction totally by local anaesthesia and with minimal blood loss."[2] He is the author of Tumescent Technique: Tumescent Anesthesia & Microcannular Liposuction, a textbook on liposuction safety and effectiveness.[3]