What are the stages of syphilis if left untreated?

Untreated syphilis progresses through four stages: Primary (painless sore/chancre), Secondary (rash, fever, swollen glands), Latent (no symptoms, hidden infection), and Tertiary/Late (severe organ damage to brain, heart, nerves, etc., potentially fatal). While initial sores and rashes resolve, the infection remains, causing severe, life-threatening complications years later if untreated, including neurological and cardiovascular failure.

How long can you live with syphilis untreated?

You can live with untreated syphilis for decades, as it progresses through latent (hidden) stages, but it remains contagious and eventually advances to severe, life-threatening tertiary syphilis, causing organ failure (brain, heart, nerves, bones) and potentially leading to death. While early stages are easily curable with antibiotics, late-stage damage (like blindness, paralysis, dementia) is irreversible.
 

What does syphilis do to your body if untreated?

Without treatment, syphilis can damage the heart, brain or other organs. It can become life-threatening. Early syphilis can be cured, sometimes with a single shot of medicine called penicillin. That's why it's key to get a health care checkup as soon as you notice any symptoms of syphilis.

What stage of syphilis may go unnoticed?

The stage of syphilis with no signs or symptoms is the latent (hidden) stage, where the bacteria remain in the body after primary/secondary symptoms disappear, potentially for years, and can only be detected by a blood test, though it can still progress to severe late-stage damage if untreated. 

How long does it take syphilis to damage organs?

Symptoms of late stage (also called tertiary syphilis) can occur 2 to 20+ years after infection. Untreated syphilis can result in damage to organs, including the brain, eyes, heart, bones and joints. The damage caused by untreated syphilis can even lead to death.

Doctor explains the Symptoms and Stages of SYPHILIS (STI)

What is the final stage of syphilis?

The end stage of syphilis, called tertiary syphilis, develops years to decades after infection in untreated individuals, causing severe, irreversible damage to organs like the brain (leading to dementia, paralysis), heart (aneurysms, valve disease), nerves, eyes (blindness), bones, liver, and skin, potentially leading to disability or death. This serious stage involves destructive inflammation, neurological disorders (neurosyphilis), severe cardiovascular issues, and large sores called gummas, highlighting the critical need for early treatment. 

What organs does syphilis affect first?

Primary syphilis: The first stage happens two to 12 weeks after exposure to someone with syphilis. During this stage, a smooth, hard sore called a chancre develops on your genitals or mouth.

What are noticeable signs of syphilis?

To know if you have syphilis, watch for a painless sore (chancre) in early stages, followed by a non-itchy body rash, fever, sore throat, and swollen glands in the secondary stage, but the only definitive way to know is through a blood test or fluid sample from a sore, as symptoms can be subtle or absent, especially in later stages. A healthcare provider uses these tests to confirm the infection and determine its stage, which can range from painless sores to severe organ damage in advanced stages. 

What are the three horrifying stages of syphilis?

Syphilis (/ˈsɪfəlɪs, ˈsɪfɪlɪs/) is a sexually transmitted infection caused by the bacterium Treponema pallidum subspecies pallidum. The signs and symptoms depend on the stage it presents: primary, secondary, latent or tertiary.

How long does it take for syphilis to cause brain damage?

Syphilis can affect the brain very early, even within weeks (meningeal syphilis), but more severe forms like general paresis or tabes dorsalis typically develop much later, often 10-20 years after the initial infection, as part of the late-stage tertiary syphilis, causing serious damage if untreated. The timing depends on the specific type of neurosyphilis (brain/spinal cord infection), ranging from early (months/few years) to late (decades). 

Does syphilis have a smell?

Yes, syphilis can have a smell, particularly in its later stages or with certain skin manifestations, where lesions can ooze a foul, sometimes fishy, discharge, but early syphilis often has no smell and many infections are asymptomatic. In secondary syphilis, flat, wart-like growths (condylomata lata) in moist areas might produce a discharge, and in tertiary syphilis, severe tissue decay (gummas) can create a strong, foul odor as skin and bone break down. 

What does syphilis do to your brain?

Syphilis can invade the brain, causing neurosyphilis, leading to severe neurological damage, including dementia, memory loss, personality changes (mood swings, delusions), language issues, headaches, seizures, blindness, hearing loss, and problems with thinking, coordination, and balance, with late-stage forms like general paresis causing progressive mental decline and disability. This damage results from the bacteria attacking the brain and spinal cord, manifesting as inflammation (meningitis) or tissue destruction. 

What does syphilis look like on skin?

Syphilis appears on the skin as a primary, painless sore (chancre) or, in the secondary stage, as a non-itchy, reddish-brown rash, often on the palms and soles, which can look faint or rough, sometimes accompanied by moist, wart-like growths (condyloma lata) in warm areas, or white patches in the mouth. The appearance varies, from flat spots to raised bumps, and can even look like other skin conditions, making it easy to miss. 

Can syphilis be detected if dormant?

Yes, dormant (latent) syphilis is detectable through specific blood tests, even without symptoms, using nontreponemal (like RPR) and treponemal tests that look for antibodies your body produces. Detection relies on serological tests (blood tests) because this stage has no outward signs, though it's crucial to distinguish early (infectious) from late (less infectious) latency, which helps guide treatment and understand transmission risk, especially for pregnant individuals. 

What happens if I don't treat my syphilis?

If syphilis is left untreated, it progresses through stages, causing severe, irreversible damage to the brain, nerves, heart, blood vessels, bones, and eyes, potentially leading to paralysis, blindness, dementia, stroke, organ failure, and even death; it also significantly increases the risk of HIV and can cause severe birth defects or death in babies if the infected person is pregnant. 

Can you determine how long you've had syphilis?

People with different stages of syphilis can have different or no symptoms as it progresses over time. Healthcare professionals may be able to use some medical tests to estimate how long a person has had syphilis. However, these may only indicate if a person has had syphilis, not for how long.

How do I know if I have late stage syphilis?

Late-stage (tertiary) syphilis develops years after infection in untreated cases, causing severe, permanent damage to organs like the brain, nerves, heart, and eyes, with symptoms including paralysis, blindness, severe headaches, dementia, stroke, heart disease (aneurysms), and large sores (gummas) on skin or organs, potentially leading to death. 

How does syphilis affect the eyes?

Syphilis, known as ocular syphilis, can affect any part of the eye, causing inflammation (uveitis, keratitis, retinitis), vision changes (blurriness, floaters, light sensitivity, redness, pain), and potentially leading to irreversible damage like glaucoma, cataracts, or total blindness if untreated, often presenting as a "great masquerader" mimicking other eye diseases, but it is treatable with antibiotics like penicillin. 

How does syphilis affect the heart?

Coronary stenosis caused by syphilis can be associated with the thickening of the aortic wall; about 26% of patients with arteritis have coronary artery involvement. In rare cases, this coronary artery disease can lead to AMI.

How does syphilis make your body feel?

These syphilis symptoms may come and go for up to 2 years. They include body rashes that last 2 – 6 weeks — often on the palms of your hands and the soles of your feet. There are lots of other symptoms, including mild fever, fatigue, sore throat, hair loss, weight loss, swollen glands, headache, and muscle pains.

What gets mistaken for syphilis?

Syphilis, especially its skin rashes (secondary stage), is often mistaken for other skin conditions like psoriasis, eczema, pityriasis rosea, lichen planus, drug eruptions, and viral rashes, while its primary sore (chancre) can be confused with genital herpes or chancroid. Its diverse symptoms, including "moth-eaten" hair loss or coppery spots on palms/soles, can mimic various diseases, making blood tests crucial for accurate diagnosis. 

How do I check myself for syphilis?

Yes, syphilis self-tests, like the FDA-authorized First To Know kit, allow at-home fingerstick blood sample collection for rapid results (minutes) or sample shipment to labs (days), detecting syphilis antibodies to help with early screening, though lab confirmation and follow-up with a doctor are crucial for a definitive diagnosis and treatment, especially for early infections where antibodies might not yet show.
 

How long does it take for syphilis to damage organs?

Tertiary (late) stage

It may start several years after someone was first infected. A person with syphilis may never have this stage of the illness. During this stage, syphilis may cause serious blood vessel and heart problems, mental disorders, blindness, nerve system problems, and even death.

What is the best antibiotic for syphilis?

The best and gold-standard antibiotic for syphilis, at all stages and especially for pregnant individuals, is Penicillin G (specifically Benzathine Penicillin G), given as injections, though the dosage and frequency vary by stage. For non-pregnant patients allergic to penicillin, alternatives include Doxycycline or Ceftriaxone, but penicillin remains the most effective, with other options used only when necessary due to potential resistance concerns with some alternatives like azithromycin. 

Where is syphilis most commonly found?

Syphilis is transmitted from person-to-person by direct contact with a syphilis sore (called a chancre), rash, or ulcers. These can occur in, on, or around the penis, vagina, anus, rectum, and lips or mouth. Syphilis has become more common. Anyone who is sexually active can get syphilis.