Women in Korea received the most plastic surgery operations per head of population, British media reported.
According to the International Society of Aesthetic Plastic Surgeons, 13 cosmetic surgery operations per 1,000 people were done in 2011, indicating one in 77 people had undergone cosmetic surgery procedures.
One in five women aged 19-49 living in cities reported to have gone under the knife.
The most popular operation among Korean women was double-eyelid surgery, which makes eyes bigger and wider by cutting the upper lid.
While Korea topped the list in relative terms, the United States ranked at the top when it came to the total number of operations, posting 3.1 million cosmetic surgery procedures last year.