question: i am having a white patch of size about3mm in the penis head and also circumbarance of penis shaft.  therem is no pain or itching.i am 63  age&5feet 4inches in hight &diapatic also.is it harmful for health? pl answer to my ? .                                 he size is increaaasing for he past 10 years i am 63 years old.there is no itch or pain. is it harmful?