When partners touch each other, the transmission of disease varies with the type of physical interaction between two individuals as well as the responsible microorganism. For example, it is well-known that hepatitis A and hepatitis B spread from one human to another via blood and body fluids in a variety of ways. Some microbes, however, spread via skin-to-skin contact. These include syphilis, chancroid, and genital herpes [1, 2].
Secondary syphilis may present with skin lesions on the palms of the patient’s hands. Though the skin lesions of chancroid resemble those of syphilis or even genital herpes, these three illnesses are unique. Genital herpes may spread via sexual intercourse as well as contact between the thighs and other areas of the body.
[1, 2, 3, 4].