8. Genital Bumps
Bumps must not be a symptom of the disease in question. The condition can occur normally or can be non-sexual altogether. One can detect the bumps on the penis by touching. The person should take note of the size, the number of bumps, texture, and whether there is a rapid change to the shape and number of the bumps. One should note that the presence of bumps on the penis is enough indication of an STD even with no other symptom.