What effect does syphilis have on body skin?

If patients with syphilis are not treated with popular science or treated in regular hospitals in time, syphilis spiral will enter the blood circulation from the lymphatic system, multiply and spread in large numbers, and invade the skin, mucosa, bones, organs, cardiovascular system and nervous system, and then appear a variety of symptoms. The skin and mucous membrane damage of tertiary syphilis accounts for 28.4% of the incidence of advanced benign syphilis, which mostly occurs within 3- 10 years after infection. Clinically, it can be divided into nodular syphilis rash, gingival swelling and proximal joint nodules. What harm does tertiary syphilis have to the skin? 1. Ulcer has a specific kidney shape or horseshoe shape. 2. The ulcer center can be cured, and the edge often continues to expand. 3. Treponema pallidum has little surface damage, but it can be positive after inoculation. 4, the number is small, isolated or clustered rather than symmetrical, often occurring in fragile parts. 5, systemic symptoms are mild, and skin lesions lack consciousness, such as invasion of periosteum and bones, feel pain, especially at night. 6, there is swelling and infiltration of the gums, and there is still hard infiltration at the bottom of the ulcer formed after rupture, which fades slowly! Through the above introduction, I hope to help everyone!