How do you get rid of spotted penis?

Usually any abnormality of the penis can be blamed on an STD though this may not Be the case if you are sexually active speak to a health proffessional as to whether or not you have an STD if you are only sexually active with yourself then it may be case by pressure placed in that spot to much kind of like a bruise in which case just don't masturbate for a while and you should find it will go away if it doesn't then speak to a your pediatrician to find more suitable help or a response to your problem