Syphilis is a sexually transmitted infection (STI) caused by the bacterium Treponema pallidum. The symptoms of syphilis can vary depending on the stage of the infection. There are four stages of syphilis: primary, secondary, latent, and tertiary.
Primary syphilis:
A painless sore or ulcer (called a chancre) at the site of infection, which can appear on the genitals, anus, mouth, or other areas of the body
Swollen lymph nodes near the site of the chancre
Secondary syphilis:
Rash on the palms of the hands or soles of the feet (may be red or brown, rough or smooth, and can be accompanied by small, raised bumps)
Fever, sore throat, headache, muscle aches, and fatigue
Swollen lymph nodes
Patchy hair loss
Lesions in the mouth, vagina, or anus
Latent syphilis:
No symptoms are present, but the infection is still present in the body
Tertiary syphilis:
Neurological symptoms, such as numbness, tingling, or weakness in the limbs
Blindness, deafness, or other sensory deficits
Mental health problems, such as depression or dementia
Severe damage to the heart, blood vessels, or other organs
It’s important to note that not everyone with syphilis will experience symptoms, and symptoms may not appear until years after infection. If you think you may have been exposed to syphilis or are experiencing any of these symptoms, it’s important to talk to a healthcare provider and get tested. Syphilis can be easily treated with antibiotics, but if left untreated, it can lead to serious health complications.