The Thai medical profession is amongst the most advanced in the region and the standard of treatments and quality of hospitals in Bangkok probably the best in the country. Western-trained doctors and state-of-the-art hospital facilities are a natural draw for countless people who want a more cost effective solution to their medical needs. The medical services available include major surgery (bypass operations, hip replacement, etc.) and a wide range of medical treatments. Bangkok is also a source of all manner of cost-effective cosmetic surgery and treatments such as Laser Sight Correction and cosmetic dentistry. It is also a major centre for sex reassignment surgery.