Well the title may be strange but this list is for yaoi manga where uke is the one who gets hurt/ill/sick due to or not by seme.
Examples: - uke tries to protect seme - uke gets sick - uke nearly dies - uke hurts himself - seme or uke's ex hurts uke - etc.
Examples can run on a hundred or maybe thousand list so i'm not listing all._. But I will place markings to show some things: - : Character deaths ahead -: Self-harm/abuse -: Not very dark story -: Extreme/very dark story