SEOUL, South Korea  In this city’s Apgujeong district, famous for its high-end boutiques and plastic surgeons, tourist buses unload Chinese and Japanese visitors looking for a nip and tuck as part of their packaged tour.

On the resort island of Jeju, the government is building Health Care Town, a 370-acre complex of medical clinics and upscale apartments surrounded by 18-hole golf courses and scenic beaches, to lure foreigners in need of medical care.

West of Seoul, on the muddy beaches of Inchon where American troops splashed ashore 58 years ago to fight in the Korean War, a new steel-and-glass town is rising to attract foreign visitors, including medical tourists.

South Korea has joined Thailand, Singapore, India and other Asian nations in the lucrative business of medical tourism. Heart bypasses, spinal surgery, hip-joint replacements, cosmetic surgery  procedures that may cost tens of thousands of dollars in the United States  can often be done for one-third or even one-tenth of the cost in Asia, with much shorter waiting times and by specialists often trained in the West.