Stain on Penis

[nh_user_1396643]

Hello to all. I am a 29 year old boy. I’ve had this spot on my foreskin since November. The month before i had unprotected sex with my partner due to the inability to use a condom (phimosis and short frenulum) Some days it gets better, other days it gets worse (turns blood red) I have no itch, I have no pain, I don’t understand what it can be. Granted that I will have to operate for phimosis and short frenulum, would anyone be able to tell me what it is? I haven’t had sex since. Now, rarely, my glans turns white and has red spots after masturbation. I am a little worried, and while waiting for a visit I would like to understand something. Greetings