Questions & Answers about У неї болить губа.
Because Ukrainian usually expresses who feels something with a prepositional phrase like у неї, not with the plain subject form вона.
- вона = she
- у неї = at her / in her / with her, but in this kind of sentence it functions like she has or for her
So:
- У неї болить губа. = Her lip hurts.
- Literally, it is closer to At her, the lip hurts.
This is a very common Ukrainian pattern for physical states:
- У мене болить голова. = My head hurts.
- У нього температура. = He has a fever.
Because губа is the grammatical subject of болить.
In Ukrainian, with body-part pain, the thing that hurts is often the subject:
- болить губа = the lip hurts
- болить рука = the arm hurts
- болять зуби = the teeth hurt
So губа stays in the nominative singular because it is the thing doing the grammatical hurting, even though in English we often think of the person as the main focus.