Syphilis is caused by the bacterium Treponema pallidum. This bacterium is a spirochete, meaning it's a spiral-shaped microorganism.
How Treponema pallidum Causes Syphilis
- Transmission: Treponema pallidum typically enters the body through broken skin or mucous membranes. This often occurs during sexual activity, including vaginal, anal, or oral sex.
- Infection: Once inside the body, the bacteria multiply and spread throughout the system.
- Progression: If left untreated, syphilis progresses through several stages (primary, secondary, latent, and tertiary), each with different symptoms and potential complications.
- Other Modes of Transmission: While most commonly transmitted sexually, Treponema pallidum can also be passed from a pregnant woman to her fetus.
Key Takeaway
Treponema pallidum is the singular causative agent of syphilis, primarily transmitted through sexual contact.
