Trypophobia is not an officially recognized mental disorder as of now.
But the fear of holes in skin and other places is a real thing and Trypophobia is a real phobia even though it's not officially medically recognized.
Sometimes it may go away because I had the Trypophobia as a kid and eventually as I got older it went away without any medical help.
Some people may have the Trypophobia all their life though so it's not always the case that it goes away on it's own or at all.
Basically Trupophobia is an aversion to the sight of irregular patterns or clusters of small holes or bumps.
You don't actually get any holes in your skin but it's a mental disorder but not officially medically recognized.
Trypophobia is a real phobia according to my therapist although like I said it's not official in most places and some medical professionals don't exactly know how to treat the phobia.