My sperm color is a very very light light green colored when i put it in a white towel. I just noticed it now but i m not sure if it s like that before. I tried it two consecutive times today and came out w/ the same result. I m really worried about it. Is it some kind of an infection or something? I don t feel any pain or any bad odor coming out of my penis head, though the root sometimes smells sour.