Red Bumps on the Penis: Is It Herpes or Something Else? - Urology

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May I ask the doctor?


I have a small red bump near the base of my foreskin that looks like a pimple.
Could this be herpes, or could there be another issue?

TJ, 20~29 year old female. Ask Date: 2005/01/16

Dr. Lai Ronghao reply Urology


Hello: It could be eczema, herpes, pearly penile papules, or inflammation, among others.
This is a response from Dr.
Lai Rong-Hao, attending physician of the Urology Department at Hsinchu Hospital, Ministry of Health and Welfare.

Reply Date: 2005/01/16

More Info


When it comes to red bumps on the penis, it's important to approach the situation with caution and a clear understanding of potential causes. The appearance of a small red bump, especially near the base of the penis, can be concerning, and many individuals may immediately think of sexually transmitted infections (STIs) such as herpes. However, there are several possible explanations for this symptom, and not all of them are related to STIs.

1. Herpes Simplex Virus (HSV): Herpes is indeed a possibility, especially if the bump is painful, itchy, or accompanied by other symptoms such as flu-like symptoms or lesions in other areas. Herpes typically presents as small, fluid-filled blisters that can rupture and form sores. If you suspect herpes, it is crucial to consult a healthcare provider for proper diagnosis and treatment.

2. Folliculitis: This is an inflammation of the hair follicles, which can occur anywhere on the body, including the genital area. It can appear as small red bumps or pustules and is often caused by bacterial infection, irritation, or ingrown hairs. Folliculitis is generally not serious and can often be treated with topical antibiotics or by maintaining good hygiene.

3. Pearly Penile Papules: These are small, harmless bumps that can appear around the corona of the glans (the head of the penis). They are a normal anatomical variation and do not require treatment. They are often mistaken for STIs but are completely benign.

4. Genital Warts: Caused by the human papillomavirus (HPV), genital warts can appear as small, flesh-colored or red bumps. They may be raised or flat and can vary in size. If you suspect genital warts, it is important to see a healthcare provider for evaluation and potential treatment.

5. Contact Dermatitis: Irritation from soaps, lotions, or other products can lead to red bumps or rashes on the skin. If you've recently changed personal care products, this could be a possible cause.

6. Other Infections: Other infections, such as candidiasis (yeast infection) or bacterial infections, can also cause red bumps or rashes in the genital area. These conditions may be accompanied by other symptoms such as itching, burning, or unusual discharge.

Given the variety of potential causes, it is essential to avoid self-diagnosing. The best course of action is to schedule an appointment with a healthcare provider, preferably a dermatologist or urologist, who can perform a physical examination and, if necessary, run tests to determine the exact cause of the bump. They may take a swab of the area or recommend blood tests to check for STIs.

In the meantime, it is advisable to avoid sexual activity until you have a clear diagnosis to prevent potential transmission of infections. Additionally, maintaining good hygiene and avoiding irritants can help manage any discomfort.

In summary, while herpes is one possibility, there are several other benign and treatable conditions that could explain the appearance of a red bump on the penis. Seeking professional medical advice is crucial for accurate diagnosis and appropriate treatment.

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