Red bumps near male genitals are considered to be caused by various reasons such as infection or eczema, warts, etc. Red bumps and rashes near genitals are only clinical symptoms. First of all, we should consider whether it is because of the inflammation caused by the infection, this kind of patients in addition to the red rash will also be accompanied by itching, pain and other symptoms, you can local skin cleaning, such as can use clotrimazole cream for local application. Secondly, we should consider whether it is caused by eczema, eczema is a skin disease, in the acute attack will have red spots, pimples, you can choose glycerine, flufenamic acid butyl ester ointment for treatment. Finally, to rule out whether it is acromegaly, to see whether there is recent unclean sex, you can further go to the hospital to do HPV examination to identify.