Also, genital warts due HPV (Human papilloma virus) infection can present as small pinkred bumps over penis. Other harmless conditions like Fordyce spots (elevated sebaceous glands), angiokeratoma of fordyce, pearly penile papules can occur in normal men and do not require any treatment.
There are hundreds of reasons one can develop bumps on penis. Bumps can be painful or painless, red, dark or skin colored, small or large, round or flattopped, smooth or rough, itchy or nonitchy, hard or soft and the list goes on.
long story short, it has been two days after I had sex w my partner and i noticed little bumps on parts of my penis head. they started as red bumps.