Syphilis - Wikipedia Syphilis ( ˈsɪfəlɪs, ˈsɪfɪlɪs ) is a sexually transmitted infection caused by the bacterium Treponema pallidum subspecies pallidum [1] The signs and symptoms depend on the stage it presents: primary, secondary, latent or tertiary [1][2] The primary stage classically presents with a single chancre (a firm, painless, non-itchy skin ulceration usually between 1 cm and 2 cm in diameter
Syphilis - Symptoms and causes - Mayo Clinic Syphilis develops in stages The symptoms vary with each stage But the stages may overlap And the symptoms don't always happen in the same order You may be infected with syphilis bacteria without noticing any symptoms for years Primary syphilis The first symptom of syphilis is a small sore called a chancre (SHANG-kur) The sore is often painless It appears at the spot where the bacteria
Syphilis - Infectious Disease - Merck Manual Professional Edition Syphilitic ocular and otic manifestations can occur at any stage of the disease Ocular syndromes can affect virtually any part of the eye; they include interstitial keratitis, uveitis (anterior, intermediate, and posterior), chorioretinitis, retinitis, retinal vasculitis, and cranial nerve and optic neuropathies
Syphilis - Harvard Health What is syphilis? Syphilis is a sexually transmitted infection caused by a type of bacteria called Treponema pallidum In its earliest stage, syphilis produces an open sore (ulcer) that leaks fluid filled with syphilis bacteria Syphilis can be transmitted by contact with this ulcer or other infectious sores that form later in the disease, usually during vaginal, oral, or anal sex If