Afraid of nail cutting

Are you afraid of getting your own nails trimmed or are you afraid to see other people trimming their nails? Are you afraid of doing it yourself or are you afraid that someone will force you to submit to a manicure? Or watch a manicure?

If it's just the thought of trimming your own nails, say "I'm afraid to cut my nails."

By the way, this seems to be a real thing, usually found

Thank you, deadrat.
I have to say both as my son is having problems with his nails and others cutting their nails.
aside from my son's condition, I'd also like to know the differences between the three, which don't have to relate to my son, through possible contexts.

My example won't work in general. For instance, it won't work for your son, who is afraid of more than cutting his own nails. Since onyxtomyphobia is an unexpected ailment, I think the simple "I'm afraid of nail cutting" would invite confusion. Nails that you hammer or nails on your fingers? Did you say "cutting" or "cuttings" (i.e., fingernail parings)? So perhaps

I'm afraid t

Thank you.

how is cutting and cuttings different?

"Cutting" is a verb form, either part of a progressive tense ("I am cutting my nails.") or a gerund ("I need to start cutting my own nails.") "Cuttings" is a noun, meaning what was cut off, in this case, nail parings.