Bumps at the Base of the Penis: Causes and Concerns - Urology

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Penile base


Hello doctor, I have noticed small bumps at the base of my penis that look somewhat like acne for some time now.
There are also a few on my scrotum, but the glans appears normal.
I don't feel any discomfort, and I haven't had any sexual intercourse, only masturbation (which I do frequently and I like to wear tight-fitting pants, which may cause some discomfort down there).
I'm hesitant to wear them now.

A Fei, 20~29 year old female. Ask Date: 2015/07/20

Dr. Xu Weikai reply Urology


A-Fei: Hello, the hot and humid weather can indeed lead to skin disorders.
If there are any unclear points, feel free to ask again, and we can discuss and research further.
Online responses should only be used as a reference; if necessary, it is important to seek medical attention at a healthcare facility.
The Ministry of Health and Welfare Taitung Hospital cares about you.

Reply Date: 2015/07/20

More Info


When it comes to bumps at the base of the penis, there are several potential causes that should be considered. Given your description of small bumps resembling pimples at the base of the penis and on the scrotum, it is essential to understand that these could be benign conditions, but they may also warrant further investigation depending on their characteristics and any associated symptoms.

1. Pearly Penile Papules: These are small, harmless bumps that can appear around the corona of the glans (the head of the penis). They are often mistaken for sexually transmitted infections (STIs) but are completely normal anatomical variations. They do not require treatment unless they cause psychological distress.

2. Folliculitis: This condition occurs when hair follicles become inflamed, often due to irritation, infection, or blockage. It can present as small red or white bumps and may be itchy or tender. Wearing tight clothing, such as your described "plastic pants," can contribute to this condition by causing friction and trapping moisture.

3. Sebaceous Cysts: These are small, non-cancerous lumps that can form under the skin due to blocked sebaceous glands. They are typically painless and can occur anywhere on the body, including the genital area.

4. Genital Warts: Caused by the human papillomavirus (HPV), these can appear as small, flesh-colored or gray bumps. They may be flat or raised and can sometimes be mistaken for other types of bumps. If you have concerns about STIs, it is important to get tested, especially if you engage in sexual activity.

5. Molluscum Contagiosum: This is a viral infection that results in small, firm, raised bumps with a dimpled center. It is generally harmless and often resolves on its own, but it can be spread through skin-to-skin contact.

6. Contact Dermatitis: Irritation from products such as soaps, lotions, or even clothing can lead to bumps and rashes in the genital area. If you have recently changed any products or clothing, this could be a contributing factor.

Given that you mentioned these bumps are not causing any discomfort and that you have not engaged in sexual intercourse, it is likely that they are benign. However, if the bumps change in appearance, become painful, or if you develop other symptoms such as itching, discharge, or swelling, it would be prudent to consult a healthcare provider for a thorough examination.

In the meantime, consider the following recommendations:
- Avoid Tight Clothing: Since you mentioned wearing plastic pants, it may be beneficial to switch to looser-fitting underwear made from breathable fabrics to reduce moisture and friction in the area.


- Maintain Hygiene: Regularly clean the genital area with mild soap and water, and ensure it is thoroughly dried afterward to prevent irritation.

- Avoid Irritants: Be cautious with any new products you apply to the area, including lotions or soaps that may cause irritation.

- Monitor Changes: Keep an eye on the bumps for any changes in size, color, or sensation. If they persist or worsen, seek medical advice.

In conclusion, while the bumps you are experiencing are likely benign, it is always best to err on the side of caution. If you have any doubts or if the situation changes, do not hesitate to reach out to a healthcare professional for personalized advice and potential treatment options.

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