STI Screening Recommendations

General Screening Recommendations by Population

• The American Academy of Pediatrics recommends that all sexually active women ≤25 years should be screened annually for chlamydia and gonorrhea regardless of reported risk behaviors 1, 2, 3
• The American Academy of Pediatrics and American Family Physician suggest that women >25 years should be screened annually if they have risk factors (multiple partners, new partner, inconsistent condom use, substance use during sex, sex work) 3
• The American Academy of Pediatrics recommends routine trichomoniasis screening is not recommended for asymptomatic adolescents but should be considered for women with high-risk behaviors 1, 2
• The American Academy of Pediatrics recommends that annual screening for pharyngeal, rectal, and urethral gonorrhea and chlamydia is recommended for all sexually active men who have sex with men (MSM) based on sexual practices 1, 4, 5
• The American Academy of Pediatrics and Praxis Medical Insights recommend more frequent screening (every 3-6 months) for MSM with higher risk factors (multiple or anonymous partners, sex with drug use) 1, 2, 5
• The American Academy of Pediatrics recommends annual syphilis screening is recommended for all sexually active MSM, with more frequent screening (every 3-6 months) for those at higher risk 1, 2
• The American Family Physician suggests that routine screening is not universally recommended for heterosexual men without symptoms 3
• The MMWR Recommendations and Reports recommend consider annual screening for sexually active young men in settings with high prevalence (≥2%) 6
• The MMWR Recommendations and Reports and American Family Physician suggest screen men with high-risk behaviors (multiple partners, inconsistent condom use, substance use during sex) 6, 3

Risk-Based Screening Frequency

• The American Academy of Pediatrics recommends screen every 3-6 months for individuals with multiple or anonymous sexual partners 1, 2
• The American Academy of Pediatrics recommends screen every 3-6 months for individuals with sex in conjunction with illicit drug use 1, 2
• The American Academy of Pediatrics recommends screen every 3-6 months for individuals with partners who engage in high-risk behaviors 1, 2
• The American Academy of Pediatrics and American Family Physician recommend screen every 3-6 months for individuals with history of recent STIs 2, 3
• The MMWR Recommendations and Reports and American Academy of Pediatrics recommend screen every 3-6 months for individuals with sex work or exchanging sex for money/drugs 6, 2

Post-Treatment Rescreening

• The American Academy of Pediatrics recommends rescreen all individuals 3 months after treatment for chlamydia or gonorrhea, regardless of partner treatment status 1, 2
• The American Academy of Pediatrics recommends consider rescreening females previously diagnosed with trichomoniasis 3 months after treatment 1, 2
• The American Academy of Pediatrics recommends if 3-month rescreening is not possible, retest at next healthcare visit within 12 months 1, 2

Site-Specific Screening Considerations

• The American Academy of Pediatrics and Praxis Medical Insights recommend collect specimens based on sexual practices and exposure sites 2, 5
• Praxis Medical Insights recommends for MSM, include pharyngeal swabs for those engaging in receptive oral sex 5
• Praxis Medical Insights recommends include rectal swabs for individuals engaging in receptive anal intercourse 5
• Praxis Medical Insights recommends nucleic acid amplification tests (NAATs) are preferred for all specimen types due to higher sensitivity 5

Special Populations

• The Clinical Infectious Diseases recommends screen all HIV-infected individuals for syphilis at initiation of care and periodically thereafter based on risk 7
• The Clinical Infectious Diseases recommends screen all HIV-infected women for trichomoniasis and all women ≤25 years for chlamydia 7
• The Clinical Infectious Diseases recommends screen men and women for gonorrhea and chlamydia at initial presentation and annually if at risk 7
• The Clinical Infectious Diseases recommends retest in 3 months for those found positive for gonorrhea, chlamydia, or trichomoniasis due to high reinfection rates 7

Annual and Risk‑Based STI Screening for Sexually Active Adults

Women ≤ 24 years

• Universal annual screening for chlamydia and gonorrhea using nucleic‑acid amplification tests (NAAT) on vaginal swab (including self‑collected), endocervical swab, or urine, irrespective of reported risk behaviors. (American Academy of Pediatrics recommendation) 8
• Syphilis testing is not routine for heterosexual women unless they have risk factors such as multiple partners, a partner with an STI history, or drug use. (American Academy of Pediatrics recommendation) 9
• Consider trichomoniasis screening for women with high‑risk behaviors (multiple partners, new partner, prior STIs, sex work, drug use). (American Academy of Pediatrics recommendation) 8

Women > 24 years

• Annual screening is advised only when risk factors are present (e.g., new sexual partner, partner with concurrent partners, inconsistent condom use, prior STIs, commercial sex work, illicit drug use, or partner who uses drugs). (Annals of Internal Medicine guideline) 10

Men Who Have Sex with Men (MSM)

• Minimum annual screening for chlamydia, gonorrhea, and syphilis at all anatomic sites relevant to sexual practices. (American Academy of Pediatrics recommendation) 9
• Site‑specific NAAT testing:
  
  • urethral/urine NAAT for insertive intercourse,
  • rectal NAAT for receptive anal intercourse,
  • pharyngeal NAAT for receptive oral sex. (American Academy of Pediatrics recommendation) 8
• Increase screening frequency to every 3–6 months for MSM with higher‑risk factors (multiple or anonymous partners, sex with drug use, or partners engaging in high‑risk behaviors). (American Academy of Pediatrics recommendation) [8][9]
• HIV and syphilis testing should be performed at least annually, with 3–6 month intervals for those at highest risk. (American Academy of Pediatrics recommendation) 9

Heterosexual Men

• Routine screening is not universally recommended for asymptomatic men without risk factors. (Annals of Internal Medicine guideline) 10
• Consider annual screening in high‑prevalence settings (≥2 % prevalence) such as jails, juvenile correction facilities, STD clinics, high‑school or adolescent health clinics. (American Academy of Pediatrics recommendation; Annals of Internal Medicine guideline) [8][10]

High‑Risk Screening Frequency (Every 3–6 Months)

• Screening interval should be shortened to every 3–6 months for any individual with risk factors such as multiple or anonymous partners, sex combined with illicit drug use, partners who engage in high‑risk behaviors, recent STI history, sex work, or MSM status. (American Academy of Pediatrics recommendation) 8
• Sex in conjunction with illicit drug use specifically warrants the increased frequency. (Annals of Internal Medicine guideline) 11

Post‑Treatment Rescreening

• Rescreen all individuals 3 months after treatment for chlamydia or gonorrhea, regardless of partner treatment status, due to high reinfection rates. (American Academy of Pediatrics recommendation) [8][9]
• If a 3‑month rescreen is not feasible, retest at the next healthcare visit within 12 months. (American Academy of Pediatrics recommendation) 8
• Women previously diagnosed with trichomoniasis should be rescreened 3 months after treatment. (American Academy of Pediatrics recommendation) 8

Pregnant Women

• Pregnant women ≤ 24 years and older pregnant women with risk factors should be screened for chlamydia and gonorrhea. (Annals of Internal Medicine guideline) 10
• If risk persists or the initial test was positive, repeat testing in the third trimester. (Annals of Internal Medicine guideline) [10][11]

Chlamydia Screening and Management Recommendations for Adolescents

Screening Frequency for Standard‑Risk Teenagers

• The CDC MMWR recommends that female adolescents under 20 years be screened for chlamydia at every pelvic examination, unless they have been in a single, mutually monogamous relationship since the previous test. 12

High‑Risk Criteria Requiring More Frequent Screening (every 3–6 months)

• A new sexual partner within the past 3 months qualifies a teenager as high‑risk and warrants screening at 3‑ to 6‑month intervals. 12
• Inconsistent or absent use of barrier contraception (e.g., condoms) also classifies a teenager as high‑risk, prompting screening every 3–6 months. 12

Partner Management

• Treating all recent sexual partners is essential because it is the primary strategy to eliminate asymptomatic chlamydial infection in males and to prevent reinfection of the index patient. 12
• Failure to treat partners leads to reinfection of the index patient, undermining the effectiveness of the initial treatment. 12

Post‑Treatment Rescreening

• All adolescents diagnosed with chlamydia should undergo a mandatory rescreening 3 months after treatment, regardless of whether the partner was treated, due to documented reinfection rates up to 39 % in this population. 12