Hi,I am Dr. Shanthi.E (General & Family Physician). I will be looking into your question and guiding you through the process. Please write your question below.
Hi i noticed the tip of my penis darkened in three two weeks ago my last sex partner was in january i am a bit worried hoping its not an std.i did take a viagra pill also so i dnt kno what could cause the darkenening of the tip i am also not circumsised.