I became sexually active recently and although I always wear condom I notice my penis now emits bad odour and I have to clean them regularly. but they will always come back. I never had odour problem before but now when i touch my penis the odour transfer to my hand. I know that slight odour is normal but I never had this problem before and this problem just started after I became sexually active. I am worried that it is a sign of STD, but everything else is normal, no itching, lumps, discharge etc... Just this annoying persistent odour that I never had before.