Hi, I've got treated for chlamydia about 2 months ago and about 2-4 weeks back I've noticed this white patch on back of my penis right under the head and I don't know what it is and if it could be serious. Here is a picture. https://imgur.com/a/i01aoNH
Hi Jozef, I think you need to go back to your DR or health clinic…it could be the first treatment didn’t work completely or it could be you have a yeast infection or something else, if your partner had it, they can reinfected you…Good Luck 
