There are lots of different diseases which can pop up on the penis, many of which can be obscure as far as the dx. Psoriasis, lichen planus, Zoon's balanitis, candida, Lichen sclerosus et atrophicus, allergic contact dermatitis, herpes, all the nasty STDs (chancres, chancroid, etc.) and scabies; but precious few of them itch. In fact, as a predominant symptom, Pso, LP, Zoon's, Candida, HSV, Chancroid and often LS&A burn or hurt as a presenting symptom. ACD and scabies: they itch. As a primary symptom, scabies particularly will drive the patients crazy. As one of our playas said: "Itchy red papules on the penis are scabies until proven otherwise." 'Nuff said. Same playa pointed out his favorite spot to look for eggs or mites is underneath the fingernails. That's a nifty trick for all of you from Redding, California. Nice job, Brian.