PN is not sexually transmittable but there are STD’s that night have similar symptoms. What comes to mind is genital warts(hpv), herpes, syphilis, and chlamydia to name a few. It is good to keep in mind one can have PN and still catch any of these STD’s too.

I left this on your above question in regards to this same subject.

PN is not contagious.

https://www.yalemedicine.org/conditions/prurigo....

“Prurigo nodularis is not hereditary or contagious. It seems to affect males and females at equal rates, though there is limited data on how many people are affected by the condition.”

Prurigo Nodularis

https://www.yalemedicine.org/conditions/prurigo-nodularis-overview

What are you basing your answer from?