Secondary stage continued...
The skin rash usually heals within 2 months on its own without scarring. After healing, skin discoloration may occur. But even though the skin rash has healed, syphilis is still present and a person can still pass the infection to others.
When syphilis has spread throughout the body, the person may have:
- A fever of usually less than 101°F (38.3°C).
- A sore throat.
- A vague feeling of weakness or discomfort throughout the body.
- Patchy hair loss, especially in the eyebrows, eyelashes, and scalp hair.
- Swelling of the lymph nodes.
Nervous system symptoms of secondary syphilis, which can include neck stiffness, headaches, irritability, paralysis, unequal reflexes, and irregular pupils.
Latent (hidden) stage
If untreated, an infected person will progress to the latent (hidden) stage of syphilis. The latent stage is defined as the year after a person becomes infected. After the secondary-stage rash goes away, the person will not have any symptoms for a time (latent period). The latent period may be as brief as 1 year or range from 5 to 20 years.
Often during this stage, an accurate diagnosis can only be made through blood testing, the person's history, or the birth of a child with congenital syphilis.
A person is contagious during the early part of the latent stage and may be contagious during the latent period when no symptoms are present.
About 20 to 30 out of 100 people with syphilis have a relapse of the infection during its latent stage.1 A relapse means the person was symptom-free but then started having symptoms again. Relapses can occur several times.
When relapses no longer occur, a person is not contagious through contact. But a woman in the latent stage of syphilis may still pass the infection to her developing baby and may have a miscarriage or a stillbirth or give birth to a baby infected with congenital syphilis.
Tertiary (late) stage
This is the most destructive stage of syphilis. If untreated, the tertiary stage may begin as early as 1 year after infection or at any time during a person's lifetime. A person with syphilis may never experience this stage of the illness.
During this stage, syphilis may cause serious blood vessel and heart problems, mental disorders, blindness, nerve system problems, and even death. The symptoms of tertiary (late) syphilis depend on the complications that develop. Complications of this stage include: