What Are the Symptoms of Syphilis in Men?

Syphilis is a highly contagious sexually transmitted infection (STI), primarily spread through high-risk sexual contact and other modes of transmission. It is also a serious disease with significant health implications. Both men and women who have engaged in unprotected or unhygienic sexual activity may develop symptoms of syphilis. However, the specific manifestations of syphilis can differ between males and females. So, what symptoms might appear in men infected with syphilis?

What Symptoms Do Men Experience with Syphilis?

In men, syphilis infection typically manifests as lesions on the penis—particularly on the foreskin, coronal sulcus, and glans. In more severe cases, patients may experience joint pain, low-grade fever, generalized malaise, and diminished immune resistance. Initial symptoms vary among individuals: some may present only with fever and no other signs, while most develop lesions on the external genitalia and skin rashes. If an individual has had unsafe sexual contact and subsequently develops these symptoms, syphilis should be strongly suspected.

Routes of Syphilis Transmission

Sexual contact remains the primary mode of syphilis transmission. Men with multiple sexual partners are at significantly higher risk. Syphilis can also spread indirectly—for example, by sharing personal items such as clothing, towels, toothbrushes, razors, or even eating utensils with an infected person. In women with syphilis, transmission to infants may occur via breastfeeding. During pregnancy, maternal syphilis infection can lead to fetal infection through hematogenous dissemination of *Treponema pallidum*, the causative spirochete.

Complications of Syphilis

Syphilis can lead to numerous complications. Although early-stage syphilis may appear relatively mild, the infection weakens the body’s defenses, predisposing patients to various secondary complications. The most common serious complication involves widespread proliferation of *Treponema pallidum*, leading to central nervous system involvement—including meningeal vascular lesions and general paresis (paralytic dementia). Additionally, the spirochete can damage multiple organ systems, including the respiratory and digestive tracts, eyes, and skeletal system.

The above provides an overview of the symptoms men may experience with syphilis. We hope this information is helpful to you. Wishing you good health and happiness.