Can you test for syphilis at home?
Daniel Santos
Updated on March 05, 2026
A person can order a home syphilis test online or buy one from some in-store pharmacies. Usually, a person needs to take a blood sample from a finger prick. And more thorough tests, which can identify various STIs, may also need urine or swab samples.
How accurate are at home syphilis tests?
Research regarding the accuracy of at-home syphilis testing suggests that at-home tests may be about as accurate as lab tests conducted on blood that has been collected by a medical professional.What is one of the first signs of syphilis?
The first sign of syphilis is a small sore, called a chancre (SHANG-kur). The sore appears at the spot where the bacteria entered your body. While most people infected with syphilis develop only one chancre, some people develop several of them. The chancre usually develops about three weeks after exposure.How do you test for syphilis fast?
A syphilis test is usually a blood test. During a blood test, a health care professional will take a blood sample from a vein in your arm, using a small needle. After the needle is inserted, a small amount of blood will be collected into a test tube or vial. You may feel a little sting when the needle goes in or out.Is syphilis tested by blood or urine?
These tests are usually blood tests. Depending on your symptoms, you may have more tests done on body fluids or tissue samples. If a first screening test is positive, the lab will run two more tests to be sure you have a syphilis infection.Urine test for Gonorrhoea and Chlamydia
What do I do if I think I have syphilis?
Go to a sexual health clinic or see a GP if:a sexual partner has told you they have syphilis or another sexually transmitted infection (STI) you've recently had sex with a new partner and did not use a condom. you're pregnant or planning to get pregnant and think you might have syphilis.
How long can you have syphilis without knowing?
And because the sores aren't painful and can live in hidden places, you may not notice them. Chancres typically show up anywhere between 3 weeks and 3 months after you get the infection.Will I always test positive for syphilis?
The antibodies produced as a result of a syphilis infection can stay in your body even after your syphilis has been treated. This means you might always have positive results on this test.How long can syphilis lay dormant?
Late latent syphilis is latent syphilis where infection occurs more than 12 months ago. Latent syphilis of unknown duration is when there is not enough evidence to confirm initial infection was within the previous 12 months. Latent syphilis can last for years.How long is syphilis contagious?
When and for how long is a person able to spread syphilis? Syphilis is considered to be communicable for a period of up to two years, possibly longer. The extent of communicability depends on the existence of infectious lesions (sores), which may or may not be visible.What does a syphilis bump look like?
For the most part, a syphilis rash appears as pale, red spots on your chest, back, arms, legs, palms, and soles of your feet. The patches are symmetrical and tend to be non-itchy. The infection spreads through contact with the rash or sores, making the secondary stage of syphilis very contagious.What does syphilis rash look like?
The characteristic rash of secondary syphilis may appear as rough, red, or reddish brown spots both on the palms of the hands and the bottoms of the feet. However, rashes with a different appearance may occur on other parts of the body, sometimes resembling rashes caused by other diseases.How big is a syphilis sore?
Syphilitic chancres and mucous patches usually are painless, unless they become secondarily infected. Both of these lesions are highly infectious. The chancre begins as a round papule that erodes into a painless ulcer with a smooth grayish surface (see Figure 13-4). Size can range from a few millimeters to 2 to 3 cm.What is the most reliable test for syphilis?
Serological testing is the most frequently used approach in the laboratory diagnosis of syphilis.Can you have syphilis for 20 years and not know it?
Without treatment you will still have syphilis for 20 years or more even though you will not have any signs or symptoms. People with latent syphilis may sometimes have symptoms (flare-ups) like skin rash, fever, a sore throat, swollen glands or feeling weak and tired.In which stage of syphilis do skin rashes appear?
Secondary stageSecondary syphilis is characterized by a rash that appears from 2 to 8 weeks after the chancre develops and sometimes before it heals. Other symptoms may also occur, which means that the infection has spread throughout the body. A person is highly contagious during the secondary stage.