instruction: hello doctor I had a white bump on my penis for the past three months it did not cause any pain when I touched it and when I tried to remove it in the shower it did not budge it is single and there was nothing else resembling it that showed up on my penis it showed up maybe a day or two after sexual contact with my girlfriend I am not sure if it is an sad today during the shower I realized it was not there anymore it either fell off or shrank I have not been paying much attention to it the last couple days so I am not really sure I am attaching a picture of what it looked like when I had it and what it looks like now it does not look like any studs I have seen online so I am at a loss as to what it could have been any help would be appreciated
output: hi the lesion is not looking like an sad sexually transmitted disease from your history it is asymptomatic and pain free whitish concretions can form due to the collection of subpreputial discharge or it can be fordyce spot wart can be asymptotic and go for spontaneous resolution but it would have spread by now apply mupirocin ointment on the spot clean the area with mild soap observe next time if it is forming again please consult with your doctor and remove it and give for biopsy along with blood tests for sad for reassurance