“…Nipples are often chapped or erosive due to being played with, stimulated, and bitten by sexual partners with clear boundaries. The chancre occurring in the nipple should be differentiated from Paget's disease of the breast, eczema of the nipple, herpes simplex virus infection, erosive adenomatosis of the nipple, basal cell carcinoma of the nipple, leishmaniasis, melanoma, and skin lymphocyte proliferation (Podlipnik et al, 2015;Sim et al, 2010;Yu et al, 2012).…”