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What grows in the coronal sulcus of the glans penis that can be contagious?

Nov 29, 2025 Source: Cainiu Health
Dr. Liu Wenmin
Introduction
Infectious lesions may appear in the coronal sulcus of the glans penis due to infections such as genital warts, genital herpes, syphilis, gonococcal urethritis, or trichomonal urethritis. Caused by human papillomavirus (HPV) infection, cauliflower-like growths in pale red or gray-brown color can be observed on the coronal sulcus. These lesions have a rough surface and are prone to bleeding, spreading through sexual or indirect contact.

Transmission-related lesions may occur in the coronal sulcus of the glans penis due to infections such as genital warts, genital herpes, syphilis, gonococcal urethritis, or trichomonal urethritis. Specific details are as follows:

1. Genital warts: Caused by human papillomavirus (HPV) infection, these appear as pale red or grayish-brown cauliflower-like growths in the coronal sulcus. The surface is rough and prone to bleeding, and the infection spreads through sexual or indirect contact.

2. Genital herpes: Caused by the herpes simplex virus, it presents as clusters of small blisters in the coronal sulcus that rupture to form erosive surfaces, accompanied by a burning pain. The virus spreads via sexual contact or mother-to-child transmission.

3. Syphilis: In primary syphilis, a hard chancre may develop in the coronal sulcus, appearing as a painless, round ulcer with raised edges. The discharge contains numerous pathogens, and transmission occurs primarily through sexual contact.

4. Gonococcal urethritis: Caused by Neisseria gonorrhoeae infection, it leads to redness and swelling of the coronal sulcus and purulent discharge from the urethral opening. The discharge contains large numbers of gonococci, which can be transmitted through sexual contact or contact with contaminated objects.

5. Trichomonal urethritis: Caused by infection with Trichomonas vaginalis, it results in itching of the coronal sulcus, redness and swelling of the urethral opening, and yellow-green discharge containing live trichomonads. Transmission commonly occurs through sexual contact or sharing of bathing items.

Maintaining cleanliness and dryness of the genital area in daily life, avoiding unhygienic sexual practices, having a fixed sexual partner, and undergoing regular check-ups are essential. If abnormal discharge, rashes, or pain occur, sexual activity should be stopped immediately and medical attention sought. Sexual contact should be avoided during treatment to prevent cross-infection.

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