Which sexually transmitted infections cause bumps on the body?

Sexually transmitted infections (STIs), primarily spread through sexual contact. These infections typically occur following unprotected or unsafe sexual activity and usually have a defined incubation period. So, which STIs cause skin bumps or lesions?

Which STIs Cause Skin Bumps or Lesions?

Common STIs associated with skin bumps or lesions include HIV/AIDS, non-gonococcal urethritis, genital herpes, condyloma acuminatum (genital warts), and chancroid. Urticaria—a skin condition characterized by hives—is an allergic reaction resulting from immune system dysregulation. Treatment for urticaria primarily focuses on antiallergic therapy and relieving itching and wind-related symptoms. Recommended oral medications include azathioprine hydrochloride tablets and compound glycyrrhizin capsules; topical treatment may include compound rehabilitation cream. In severe cases, intravenous infusion may be added to effectively improve rash symptoms. Avoid scalding the affected area with hot water, and never scratch the lesions—doing so may cause skin abrasions and worsen secondary infection.

The most effective way to prevent STIs is to avoid unsafe or high-risk sexual behaviors—including same-sex, opposite-sex, or other forms of sexual contact—especially unprotected intercourse without condom use. Engaging in sexual activity without protective measures significantly increases the risk of contracting infectious diseases and should therefore be avoided whenever possible.

Additionally, certain STIs—such as gonorrhea and condyloma acuminatum—can also be transmitted indirectly via contaminated personal items (e.g., towels, underwear). Thus, if a family member is diagnosed with an STI, their personal belongings must be used separately and thoroughly disinfected to prevent cross-infection. We hope this information proves helpful to you!