One difference between the lesions of primary syphilis (chancre) and HSV genital lesions that may help in differentiating the two is:

One difference between the lesions of primary syphilis (chancre) and HSV genital lesions that may help in differentiating the two is:

• A. Syphilis chancre is painless while HSV lesions are painful
• B. Syphilis lesions have a flat edge while HSV lesion edges are more raised
• C. Syphilis chancres are more likely to ulcerate than HSV lesions
• D. Erythema & edema is greater with syphilis chancre than HSV lesions

Answer: (A)

Pain level of the lesions is the key clue when distinguishing a primary syphilis chancre from genital herpes lesions. A chancre is typically a single, painless ulcer with an indurated edge and a clean base, and it often has minimal surrounding inflammation. In contrast, initial herpes outbreaks produce painful lesions, usually as grouped vesicles that ulcerate, forming shallow, painful ulcers on an erythematous base, often with significant discomfort and sometimes systemic symptoms. Because pain is such a consistent and practical differentiator in these early lesions, the statement that the syphilis chancre is painless while HSV genital lesions are painful best distinguishes the two.

Pain level of the lesions is the key clue when distinguishing a primary syphilis chancre from genital herpes lesions. A chancre is typically a single, painless ulcer with an indurated edge and a clean base, and it often has minimal surrounding inflammation. In contrast, initial herpes outbreaks produce painful lesions, usually as grouped vesicles that ulcerate, forming shallow, painful ulcers on an erythematous base, often with significant discomfort and sometimes systemic symptoms. Because pain is such a consistent and practical differentiator in these early lesions, the statement that the syphilis chancre is painless while HSV genital lesions are painful best distinguishes the two.