Syphilis - primary

Primary syphilis; Secondary syphilis; Late syphilis; Tertiary syphilis

Syphilis is a bacterial infection that is most often spread through sexual contact.

Primary syphilis

Syphilis is a sexually transmitted disease caused by the bacterium Treponema pallidum. Primary syphilis presents as a small painless open sore 3 to 6 weeks after exposure. Although the lesion heals within 6 to 8 weeks, the untreated organism will continue to multiply unchecked, causing many complications. Infection may last for 30 years or more and result in severe neurological complications.

Male and female reproductive systems

The male and female reproductive systems, viewed from a mid-sagittal section.

Syphilis, secondary on the palms

Secondary syphilis is one of the few infectious diseases that produces rashes on the palms and soles, as well as a generalized rash. If an ulcer on the penis is followed several weeks later by a rash, the person should always be evaluated for syphilis.

Causes

Symptoms

Exams and Tests

Treatment

Outlook (Prognosis)

Possible Complications

When to Contact a Medical Professional

Prevention