Hi Thank you for asking HCM. I have gone through your query. Smegma can accumulate and give rise to bacterial and fungal infections. In such case you can get a foul smell. In such case i would recommend using creams or ointments with combination of antifungal like miconazole ant bacterial like neomycin and corticosteroid like beclamethasone for local application. He should avoid soaps and irritants to wash the area. He can use saline or warm water for washing. It is true that men can spread conditions like bacterial vaginosis to women and they won t show any clinical signs of it. Hope this may help you. Let me know if anything not clear. Thanks.