There are three main stages of syphilis: primary, secondary, and tertiary. People are usually more infectious during the early stages of the condition.
Primary syphilis typically occurs around three to four weeks after first contracting the bacteria. The most common, mild symptoms at this stage of syphilis are sores around the mouth, genitals and rectum, and swollen lymph nodes. These sores can stick around for up to six weeks before disappearing.
Secondary syphilis can happen at any point after the primary stage. The two most common symptoms are skin rashes and a sore throat. As a result of the relatively general nature of the symptoms, secondary syphilis is often mistaken for other skin conditions like psoriasis.
An additional stage is sometimes referred to between secondary and tertiary syphilis. It’s known as latent syphilis and refers to a period of time where the infection becomes dormant again, and people experience little to no symptoms.
Tertiary syphilis is the most advanced stage of the disease and could lead to major health problems like blindness, hearing loss, heart disease, and even death.