Scalp Psoriasis Pictures Why Is Dandruff Contagious, But Scalp(facial), Psoriasis Isnt?

Why is dandruff contagious, but scalp(facial), psoriasis isnt? - scalp psoriasis pictures

I heard the scalp psoriasis is not contagious, but hereditary. Woudnt I think there is much he would have as many PPL, shed. I just wanted to add my knowledge. Please Nice n informative, thank you.