How does syphilis develop and flow?

The development of syphilis is usually divided into three periods.
The primary period begins with the appearance of a solid chancre and lasts 1.5-2 months. A week after the appearance of chancre, lymph glands enlarge near the ulcer. If it appeared on the genitals, then the inguinal lymph nodes increase, and if on the lips – submandibular. The diagnosis of syphilis in the primary period can be confirmed by studies of discharge from the sores and blood tests. The first study can be done immediately after the ulcer is formed, but since it does not hurt, rarely does anyone. A blood test does not confirm the diagnosis from the first days of the disease, so after a few weeks it must be repeated for complete confidence.
The secondary period lasts about 3-4 years and begins with the appearance of a rash that does not peel and does not itch. Rashes appear in the throat and lungs, as well as in the form of pale pink spots on the body. Then cyanotic-red nodules appear on the genitals, perineum, and inguinal folds. Having existed for some time, even without treatment, they disappear, and then reappear. This happens several times during the entire period.
The tertiary period, in which the bones, blood vessels, spinal cord and brain are affected, lasts 10-20 years and ends with the patient’s paralysis and dementia.

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