Hello-
Asymptomatic syphilis stage occurs in two phases: early (within 1 year of infection) and late (after 1 year), and follows secondary syphilis. Late latent syphilis is noninfectious. The bacteria remain inactive in the lymph nodes and the spleen. Latency can last 3?30 years and may or may not progress to the final, or tertiary, syphilis. About 30 percent of infected people persist in a latent state.
However its best not wait for it to become symptomatic. Its best to start some good immunoboosting Ayurveda supplements to lengthen your late period and avoid its active stage forever.