Syphilis: Ulcer May Heal, But Is It Really Gone?

Clitoria Sexual Health Clinic, Gynecological Exams, Phetkasem 81, Bangkok

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Syphilis is a sexually transmitted infection caused by the bacteria Treponema pallidum.

It spreads through vaginal, anal, or oral sex, as well as direct contact with syphilis sores.

The infection can also be passed from mother to child during pregnancy.

It remains one of the most common STIs worldwide. According to WHO (2023), more than 7 million new cases are reported each year.

Without treatment, syphilis can progress and cause serious complications to the heart, brain, and other internal organs.

Causes of Syphilis

• Caused by the bacteria Treponema pallidum
• Spread through unprotected sex
• Transmission from mother to child during pregnancy (congenital syphilis)
• Direct contact with syphilis sores

Chancre : Dry and Painless Syphilis Sore

Syphilis Rash : Reddish and painless

Symptoms of Syphilis

Syphilis progresses in four main stages:

• Primary: Firm, painless sores (chancres) on genitals or mouth. Sores heal on their own, but the infection persists if untreated.
• Secondary: Rashes (especially on palms/soles), swollen lymph nodes, fever, fatigue. Symptoms may resolve but infection remains.
• Latent: No visible symptoms, but blood tests show infection. Results from untreated or incomplete treatment in earlier stages.
• Tertiary: Severe complications affecting brain, heart, and major blood vessels.

Diagnosis

Doctors use medical history, physical exam, and blood tests such as VDRL, RPR, or TPHA.

In some cases, swab samples from sores or secretions may be tested directly.

Treatment for Syphilis

• Penicillin G injection is the standard treatment.
• Those allergic to penicillin may use alternative antibiotics under medical supervision.
• Both the patient and their sexual partners must be treated simultaneously.
• Follow-up blood tests confirm successful treatment.

Syphilis Prevention

• Always use condoms during sex.
• Get regular STI check-ups if at risk.
• Avoid multiple unprotected partners.
• Pregnant women should be screened for syphilis during their first prenatal visit.

Service Fees (Clitoria Clinic)

Consult Clitoria Clinic, Phetkasem 81, Bangkok

Tel: 081-116-3788 or Line OA: @dr.clitoria

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Doctors Advice

Syphilis is curable if detected early. Annual sexual health check-ups are crucial, especially for those with multiple partners or at high risk.

Never ignore unusual signsearly treatment prevents serious complications.