Syphilis is a sexually transmitted infection that, if untreated, can cause multiple health problems as it goes through 3 stages. A review article by Amerson and colleagues in JAMA Network on September 27, 2022 described indications for testing.
Syphilis has been increasing in frequency since 2001 (increased three-fold over the following 18 years). Who is at greater risk than others? The highest rate is among men who have sex with men (57% of new cases). Although syphilis is more common in men regardless of sexual orientation, the rate in women has tripled between 2015 and 2019.
The increased rate of syphilis in women has increased the rate of congenital syphilis (babies born with it). Congenital syphilis can cause “miscarriages, stillbirth, neonatal death, low birth weight,” or signs of congenital syphilis.
Risk of getting syphilis is also increased in non-Hispanic black men and women; the highest rate is in non-Hispanic “American Indian and Alaska Native women.” Higher risk is also present among people with “HIV, methamphetamine or opioid use disorder, young adults, and a history of incarceration, transactional sex (prostitution), or military service.”
The authors recommend testing for syphilis in anyone with signs of syphilis such as a painless skin ulcer on the genitals, anus, or mouth.
Screening patients without signs or symptoms of syphilis is recommended by the authors in men who have sex with men and people with HIV. Tests should be done annually. Other people in a high risk category should be considered for annual testing on a case by case basis.
Pregnant women should be tested at their first prenatal visit. If the woman is at high risk, repeat testing at the beginning of the third trimester and at delivery.
When a screening test is positive, testing for other sexually transmitted diseases should also be done. Adolescent and adult women should also have a pregnancy test performed.
In my opinion, these guidelines should be modified for an individual patient based on the specifics of the case. Decisions should be made jointly by the patient and their doctor.
Peter M. Hartmann, MD
Family Medicine and Psychiatry