Ectopic Sebaceous Glands: A Urology Perspective - Urology

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Is it ectopic sebaceous gland?


Hello doctor, my girlfriend and I are monogamous partners and we are both certain that we have no sexually transmitted infections.
A few days ago, while showering, I accidentally discovered a cluster of white bumps around the urethral opening of the glans.
They are only clearly visible when I compress the glans or during an erection.
The bumps are distinct and feel firm, as if they are embedded under the skin, with flat tops that slightly protrude, measuring about one millimeter in diameter.
There is no discomfort at all.
I have a slightly long foreskin and I have a habit of masturbating at least once a day, sometimes I shower every two days.
I am very worried, so I searched online and found that it resembles sebaceous gland hyperplasia, but I am still a bit scared.
I hope you can tell me if this could be a symptom of a sexually transmitted infection.
Additionally, if possible, I would appreciate it if you could provide me with an email address so I can send you a photo for a more accurate consultation and to help ease my concerns.
Thank you.

yi, 20~29 year old female. Ask Date: 2018/08/09

Dr. Du Shixi reply Urology


Hello: This facility cannot provide a diagnosis without a personal examination by a physician.
It is recommended that you visit a urology department at a hospital.
Wishing you good health.

Reply Date: 2018/08/09

More Info


Ectopic sebaceous glands, also known as sebaceous gland hyperplasia, can occur in various locations on the body, including the genital area. These glands are responsible for producing sebum, an oily substance that helps to lubricate and protect the skin. When these glands become ectopic, they can appear as small, white bumps or lesions on the skin, which may be what you are observing around the glans and urethral opening.

From your description, the lesions you are experiencing seem to be consistent with ectopic sebaceous glands. They are typically characterized by their small size, firm texture, and the fact that they do not cause any discomfort or pain. The fact that they are more visible when the penis is erect and that they feel like they are embedded in the skin further supports this possibility. Ectopic sebaceous glands are benign and are not associated with sexually transmitted infections (STIs) or other serious medical conditions.

It is important to note that while ectopic sebaceous glands are generally harmless, any new or unusual growths on the genital area should be evaluated by a healthcare professional to rule out other conditions, including STIs or dermatological issues. Given that you have a history of masturbation and that you are concerned about your hygiene, it is also essential to maintain proper genital hygiene to prevent any potential irritation or infection.

If you are experiencing anxiety about these lesions, it may be beneficial to consult with a urologist or dermatologist who can perform a physical examination and provide a definitive diagnosis. They may also recommend a biopsy if there is any uncertainty regarding the nature of the lesions.
In terms of your concerns about STIs, since you and your partner are in a monogamous relationship and have both been tested negative for STIs, it is unlikely that these lesions are related to an infection. However, if you notice any changes in the lesions, such as increased size, color changes, or the development of pain or discharge, it is crucial to seek medical attention promptly.

Regarding your request to send a photo for a more accurate assessment, it is not advisable to share personal medical images through email or online platforms due to privacy and security concerns. Instead, I recommend scheduling an appointment with a healthcare provider who can examine the area in person and provide you with the reassurance and care you need.

In summary, while ectopic sebaceous glands are generally benign and not indicative of an STI, it is always best to consult with a healthcare professional for a thorough evaluation. They can provide you with peace of mind and appropriate management if necessary. Remember to practice good hygiene and monitor any changes in your condition.

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