if you are worried about an std then go to a clinic and get tested once and for all. there is nothing worse than worry and this way you will know one way or another. if the tests come back negative then you have some sort of skin irritation. the best thing for this is a penis health creme called man1 man oil. apply it once a day and it will go away for sure. good luck to you.
i have had a recurring bump on the shaft of my penis for a little over a year. its red but doesnt hurt. what could it be. the bump does not burn sting or hurt in any way. it seems to be around where some pubic hair is. i have had sexual contact before with my now ex girlfriend and am wondering if it is an std. i have given blood not because of the bump but because i wanted to and got my results back. they gave me a card that had my blood type and name. they gave my a paper for future donations and thats it. i have also found sores in my mouth but i have stabbed myself with a toothbrush before and had sores after.