What can cause a man's penis to smell bad

what is it that can cause a mans penis to start smelling like an acid fish smell?

Various STDs or a urinary track infection (UTI), or a yeast infection (though rare, guys can actually get it).

It's called TRY washing the stinkie thing

Its very simple and straight. You don’t a doctor to tell you that it’s all got to do with poor hygiene. Lack of good hygiene in your private organs can cause some serious infections and this can lead to disorders as well. Hence, one should take proper care. Hygiene should be maintained to avoid disorders like herpes.

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The skin of the penis will not smell by itself, unless with poor hygiene. The most common cause of a fishy smell is due to urinary track infection.

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