Herpes Simplex Virus (HSV) testing kits encompass molecular, antigen and antibody assays used to detect HSV-1 and HSV-2 infection. With an estimated 3.7 billion people under-50 already infected with HSV-1 and 500 million with genital HSV-2, accurate, rapid self-collection tools are becoming a frontline defence against onward transmission. The global Herpes Simplex Virus Testing Kits market size is projected to reach USD 1.94 billion in 2025, advancing at a 7.1% CAGR through 2033, underpinned by widening STI-screening guidelines, normalization of at-home sample collection, and reimbursement tailwinds across North America and the EU5. Growth outlook is further lifted by multiplex PCR panels that consolidate HSV with CT/NG/Trichomonas, rising female health literacy, and the entry of digital-health platforms that convert one-off test sales into subscription-based, repeat-order models.