Syphilis: Symptoms and Lymph Node Swelling Explained - Urology

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Is there a syphilis infection?


The initial ulceration of the foreskin is accompanied by sharp pain and occasional itching, along with swelling of the right lymph nodes.
After a week, the sharp pain has disappeared, but occasional itching persists, and the lymph nodes remain swollen.
If the initial syphilis causes an ulcer, would it not typically cause pain or itching? My initial contact causes sharp pain.
Could you please clarify this for me? Thank you!

Niming, 20~29 year old female. Ask Date: 2017/04/25

Dr. Du Shixi reply Urology


Hello: Syphilis ulcers are usually not very painful, which may lead patients to avoid seeking medical attention.
If you have engaged in unsafe sexual practices, it is advisable to seek medical care, as infections of the glans and foreskin typically do not present with right-sided lymphadenopathy.

Reply Date: 2017/04/25

More Info


Syphilis, a sexually transmitted infection caused by the bacterium Treponema pallidum, can manifest in various ways, particularly in its early stages. Understanding the symptoms and their implications, especially concerning lymph node swelling, is crucial for timely diagnosis and treatment.

Initially, syphilis presents itself in three stages: primary, secondary, and tertiary. The primary stage is characterized by the appearance of a painless sore, known as a chancre, at the site of infection. This sore typically does not cause pain or itching, which can lead to a misconception about the nature of the infection. However, in some cases, individuals may experience discomfort or a burning sensation, particularly if the sore is irritated or if there is a secondary infection. The chancre usually heals on its own within three to six weeks, even without treatment.

In your case, the presence of a painful ulcer in the foreskin, accompanied by right-sided lymph node swelling, raises several considerations. The pain you describe could be due to irritation or inflammation surrounding the ulcer rather than the ulcer itself being typical of syphilis. It's also important to note that while lymphadenopathy (swelling of lymph nodes) is common in syphilis, it is usually painless in the primary stage. The fact that your lymph nodes remain swollen after the initial pain has subsided suggests that there may be an ongoing inflammatory process or possibly another underlying condition.

The secondary stage of syphilis can present with systemic symptoms, including fever, fatigue, and a rash, along with further lymph node swelling. In this stage, the lymph nodes may become more pronounced and tender, indicating a more widespread infection. If the infection progresses to the tertiary stage, it can lead to severe complications affecting various organ systems, including the cardiovascular and nervous systems.

Given your symptoms, it is essential to consider other potential causes for the ulcer and lymphadenopathy. Conditions such as herpes simplex virus infections, chancroid, or even non-infectious causes like contact dermatitis or other dermatological conditions could also present similarly. Therefore, it is crucial to seek medical evaluation for accurate diagnosis and appropriate management.

In summary, while syphilis can cause ulcers and lymph node swelling, the characteristics of your symptoms—particularly the initial pain and persistent lymphadenopathy—suggest that further investigation is warranted. A healthcare provider can perform serological tests to confirm or rule out syphilis and other sexually transmitted infections. Early diagnosis and treatment are vital to prevent complications and ensure a better prognosis. If syphilis is confirmed, treatment typically involves a course of antibiotics, usually penicillin, which is highly effective in eradicating the infection.

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