Comment by DanielHB

I moved from Brazil to Sweden and it is hard talking to medical doctors, it is so indoctrinated into us.

me: Hi Doctor... I have X problem, Doctor. Could you give me some treatment, Doctor?

Doctor: You can just call me Ana

me: Yes Doctor Ana

Even for professionals that don't have titles if they have authority over you, you need to use the title. VERY evident when talking to police officers always say "Senhor" (sir), police have the power to really screw with you without any reason so better to show respect. You never know when you run into a police officer who enjoys screwing people over.