Is it possible to duplicate the keyword in the title?

Question

Search Engine Optimization

For example, there is a page doctu.ru/msk/doctors/dermatolog - there the title contains the keyword "dermatologist" twice - "Moscow Dermatologists - 1477 dermatologists, 1673 patient reviews".
Is it possible and necessary to duplicate one keyword twice in the title or is it not recommended?

Answer 1

It's better not to do that. If there is a synonym, use it, if not, then you can, for example, "Moscow Dermatologists - 1477 doctors, 1673 patient reviews."

Answer 2

everything should be natural,
"dermatologist" is possible, 2-3 words should already be looked at

Answer 3

No, duplication is not welcome now

Answer 4

Look at your competitors. As a rule, two occurrences in a title are normal. The main thing is to be readable, i.e. for people