Syphilis is a sexually transmitted infection (STI) caused by the bacterium _Treponema pallidum_. It can cause a wide range of symptoms, from mild to severe, and if left untreated, it can lead to serious health complications, including damage to the brain, heart, and other organs. However, syphilis is curable with antibiotics, and there are a number of things you can do to avoid getting it.
The most important thing you can do to avoid syphilis is to practice safe sex. This means using condoms every time you have sex, and getting tested for STIs regularly. You should also avoid sharing sex toys with others, and get vaccinated against syphilis if you are at high risk of getting it.