Kumar S, et al. - Researchers aimed at determining the frequencies of sexually transmitted infections (STIs)/human immunodeficiency virus (HIV) testing among patients with high-risk sexual behaviors (HRSB). From a large US administrative outpatient medical claims data set from 2015 to 2017, they identified 52,160 patients with HRSB. Of these, 90.3% were patients with opposite-gender partners, 7.7% patients with same-gender partners, and 2.1% patients with same- and opposite-gender partners. There were 77.5% and 82.1% of the patients insured 6 months before and after the index, respectively. On the index date, mostly chlamydia (65.3%) and gonorrhea (65.2%) were tested among patients with opposite-gender partners and mostly syphilis (51.5%) and HIV (57.8%) were tested in patients with same-gender partners. Follow-up STI/HIV testing was reported in 89.5% during 1 to 6 months and 33.1% during 7 to 12 months after the index date among insured patients. An STI/HIV test within 1 to 6 months after the index date was more frequently reported among those tested on the index date. Findings suggest the possibility of improvement in the STI/HIV testing among patients with HRSB. Patients identified as HRSB should get tested and testing should be continued among them based on recommendations. .