into an open sore (ulcer), but remains painless. When rubbed it leaks a clear fluid .
that is highly infectious. Moreover, the lymph nodes usually become enlarged or .
swollen.
The sore is often ignored because of the insignificant symptoms and signs. .
"Half of the infected women and a third of the infected men are unaware of the.
sore(Human Disease 939)". The sores usually heal in 3 to 12 weeks, after which the .
person appears to be entirely well. .
The secondary stages of syphilis usually begins with a skin rash. Which .
appears 6 to 12 weeks after infection. "Twenty-five percent of infected people still .
have a healing sores at this time(Human Disease 939)". Skin rash may last for months or .
may be short-lived. The rash usually clears up, if a person isn't treated. New rashes may .
appear weeks or months later. Mouth sores are common.
Syphilis affects more than 80 percent of people. Fifty percent have .
enlarged lymph nodes throughout the body, and about 10 percent have inflammation of .
the eyes. Eye inflammation usually causes no symptoms, occasionally the optic nerve .
swells, which may cause some blurring of the vision. Another symptom are inflamed .
bones and joints that ache painfully within 10 percent of people. Kidney inflammation .
.
.
may cause protein to leak into the urine. Small number people develop an inflammation .
of the lining of the brain, "which causes headaches, neck stiffness, and sometimes .
deafness(Human Disease 940)". After recovering from the secondary stage. The disease .
if not treated enters a latent stage, in which no symptoms occur. The latent stage may last .
for years, decades or for the rest of the person's life.
During the tertiary stage or the stage the symptoms range from mild to .
devastating . Three major types of symptoms may occur: benign tertiary syphilis, .
cardiovascular syphilis and neurosyphilis. "Benign tertiary is rare today(Human Disease .