Syphilis is a sexually transmitted disease caused by the bacteria Treponema pallidum.
Initially, an ulcer forms after infection, and if left untreated
During the second and third stages, various symptoms such as rash and organ damage may appear.
Fortunately, the fact that it can be completely cured with antibiotics is a major difference.
AIDS is a disease caused by the HIV virus.
It attacks the immune system, and over time, the immune strength weakens, making it easier to catch various infectious diseases.
There is currently no cure, but through antiretroviral therapy (ART)
You can suppress the activity of the virus and stay healthy.

Syphilis can be cured, but AIDS requires lifelong management, which is the main difference.
Always use protection during sexual activity, and if there is a risk of infection, it's best to get tested quickly!