Specialists and YouTubers warn of “correct knowledge about syphilis”. The number of infected people has increased rapidly over the past 10 years.

Symptoms such as a rash and crusting appear, but they disappear quickly. Many cases of infection are seen in people who have no history of using or working in the workplace. Syphilis is not only prevalent in large cities, but is also spreading to regional cities, experts say. However, experts point out that even if the symptoms are often felt, they often do not occur.