Which STD is often tested using a simple skin swab?

Herpes is often tested using a simple skin swab because the virus typically causes visible sores or lesions on the skin or mucous membranes. The swab can collect fluid or cells from these lesions, and the sample can then be analyzed in a laboratory to detect the presence of the herpes simplex virus (HSV). This method is quick and non-invasive, making it a practical choice for diagnosing herpes infections.

In contrast, other STDs on the list typically require different testing methods; for instance, HIV is primarily diagnosed through blood tests, syphilis may involve blood tests or examining fluid from sores, and gonorrhea is usually diagnosed through urine tests or swabbing of bodily sites like the throat or cervix. The distinct method used for herpes testing via a skin swab highlights its specific clinical presentation and is central to confirming a diagnosis.