Lack of regulation and "professional greed" is putting patients undergoing cosmetic surgery at more risk than ever before, a leading doctor warns. Nigel Mercer, president of the British Association of Aesthetic Plastic Surgeons, called the cosmetic surgery industry an "unregulated mess". Tighter control is needed to clamp down on issues such as two-for-one offers and untested products, he said. His views are backed by several doctors writing in the Clinical Risk journal.