I’ve been following this thread for a bit. If you're looking at Bangkok vs Hat Yai, Bangkok definitely has more high-end options, though Hat Yai is great for convenience if you're coming from Malaysia.
For BKK, most people jump straight to the famous boutique clinics, but I’d actually suggest looking into some of the JCI-accredited multi-specialty hospitals too. They often have very strict safety protocols for plastic surgery. Ramkhamhaeng Hospital (
https://www.ram-hosp.co.th) is one that’s quite reputable among locals and expats for surgical procedures but doesn't get as much 'tourist hype' as others. Might be worth checking their plastic surgery department if you prioritize safety and hospital-grade facilities over just aesthetics. Good luck with your choice!