Syphilis is a preventable and treatable sexually transmitted infection (STI) that can cause serious health problems if left untreated. Syphilis is spread through vaginal, anal or oral sex. Women can also pass syphilis to babies during pregnancy (congenital syphilis). Syphilis develops in stages (primary, secondary, latent and tertiary).
Signs and Symptoms
There are different signs and symptoms at each stage of syphilis. Many people do not notice any signs or symptoms.
- Primary stage: A person with primary syphilis generally has a sore or sores in the area where syphilis entered the body. These sores usually occur on or around the genitals, the anus or the rectum, or the mouth. These sores are usually (but not always) firm, round and painless.
- Secondary stage: Symptoms of secondary syphilis include skin rash, swollen lymph nodes and fever. The signs and symptoms of primary and secondary syphilis can be mild, and they might not be noticed.
- Latent stage: This stage is a period when there are no visible signs or symptoms of syphilis.
- Tertiary stage: Most people with untreated syphilis do not develop tertiary syphilis. Tertiary syphilis occurs 10-30 years after the syphilis infection began and is very serious. Tertiary syphilis damages internal organs and can result in death.
Without treatment, syphilis can spread during any stage to the brain and nervous system (neurosyphilis), the eye (ocular syphilis) or the ear (otosyphilis). Signs and symptoms can include:
- Neurosyphilis: Severe headache, muscle weakness, trouble with muscle movement, changes to a person's mental state, dementia.
- Ocular syphilis: Eye pain, eye redness, changes in vision or blindness.
- Otosyphilis: Hearing loss, ringing in the ears (tinnitus), dizziness or vertigo.
Testing
Health care providers typically use a blood test to test for syphilis. All sexually active Michiganders are encouraged to ask for a syphilis blood test when getting tested for other STIs such as gonorrhea, chlamydia and HIV. Most local public health departments offer no or low-cost testing and many medical providers can order this test. Find STI testing near you.
Treatment
Syphilis is treated and cured with antibiotics. Bicillin L-A® is the recommended treatment for syphilis and the only treatment option for some people.
Without treatment, syphilis can cause long-lasting harm. Follow-up testing by a health care provider should be done after treatment to make sure the infection is cured.
Resources
- Learn more about syphilis (CDC).
- If you have questions about syphilis or other STIs, please call the Michigan HIV/STI Hotline at 800-872-2437 or visit misexualhealthinfo.com.