A 53-year-old member asked:
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How long does it take for syphilis to be detectable in a blood test?

1 doctor answer
Dr. James Ferguson
45 years experience in Pediatrics
Weeks to months: Testing for syphillis relies on both non-specific tests that can be falsley +or - and more specific germ tests as backup. A + or rising level of a screening test is confirmed by a germ test. The most specific test is finding the germ in material from a lesion. Since transmission ~30% per contact with an infected source, a single dose of penicillin is often given as early as exposure is suspected.
Answered on Aug 22, 2018
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Related questions:

A 52-year-old member asked:
Dr. Susan Johnson
33 years experience in Gynecology
4 weeks usually: The fta-abs (fluorescent treponemal antibody absorption test can be used to detect syphilis except during the first 3 to 4 weeks after exposure to syp ... Read More
4
4 thanks
A 45-year-old member asked:
Dr. Jane Eason
32 years experience in Infectious Disease
Syphilis: Signs/symptoms of Syphilis may occur anytime from 3-90 days after exposure, though usually around 3 weeks. The blood test will likely be positive in ... Read More
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A 29-year-old female asked:
Dr. Mary David
Specializes in Obstetrics and Gynecology
It is accurate: The risk was low from the behavior described and the test should be accurate by 1-2 weeks at least.
A 41-year-old member asked:
Dr. Gurmukh Singh
48 years experience in Pathology
Your doctor: Your doctor can order a blood test and most hospital labs are capable for performing the test. A community health clinic may offer the service.

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