Ectopic Sebaceous Glands: Insights from Urology - Urology

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Ectopic sebaceous glands inquiry?


Hello Dr.
Fu, I hope you don't mind me reaching out.
Recently, while showering, I noticed some small, bump-like lesions on the inner side of my foreskin, which appeared to be distributed in a scattered manner.
I later consulted a urologist who diagnosed it as sebaceous gland heterotopia.
He mentioned that treatment is only necessary if it causes swelling or pain in the glans; otherwise, it is not a concern.
However, I would like to ask if sebaceous gland heterotopia can indeed present as small, scattered patches? I have about two to three small areas that feel neither painful nor itchy, and they appear as bumps to the naked eye.
They look somewhat similar to the images found here: https://www.google.com.tw/search?q=%E5%8C%85%E7%9A%AE+%E7%9A%AE%E8%84%82%E8%85%B8%E7%95%B0%E4%BD%8D%E7%97%87&rlz=1C1FDUM_enTW473TW663&source=lnms&tbm=isch&sa=X&ved=0ahUKEwimrfK9nODKAhUHmJQKHVGLC98Q_AUIBygB&biw=1920&bih=955#imgdii=3oxsFcIgHcJseM%3A%3B3oxsFcIgHcJseM%3A%3BdPVYlWPO0h6csM%3A&imgrc=0-n8YWHJGLxX_M%3A.
They are located at the frenulum of the foreskin and appear as small, bump-like lesions scattered in small patches.
Does the doctor also consider this to be sebaceous gland heterotopia? I still feel uneasy and would like to ask you more about it.

A De, 20~29 year old female. Ask Date: 2016/02/05

Dr. Fu Shizhang reply Urology


It is certainly possible for a scattered distribution to occur.
However, if you want to confirm it definitively, a biopsy is the only way.

Reply Date: 2016/02/05

More Info


Ectopic sebaceous glands, or sebaceous gland heterotopia, are a benign condition characterized by the presence of sebaceous glands in areas where they are not typically found, such as the inner foreskin of the penis. This condition is generally harmless and often goes unnoticed unless it causes discomfort or cosmetic concerns.
From your description, it seems that you have noticed small, bump-like structures on the inner side of your foreskin, which your urologist has identified as ectopic sebaceous glands. These glands can appear as small, painless, and non-itchy bumps, often resembling acne or small cysts. They can indeed be distributed in patches or clusters, which aligns with your observation of having them in two to three distinct areas.

The presence of ectopic sebaceous glands is quite common and typically does not require treatment unless they become inflamed or infected, leading to pain or other complications. The fact that your urologist has advised you that treatment is only necessary if there are symptoms such as swelling or pain is consistent with standard medical practice.
It is important to note that while ectopic sebaceous glands are benign, any new or changing lesions should be monitored. If you notice any changes in size, color, or if they become painful, it would be prudent to follow up with your healthcare provider. Regular self-examinations can help you keep track of any changes in your condition.

In terms of your concerns about the distribution of these glands, it is indeed possible for ectopic sebaceous glands to appear in a scattered pattern. They can vary in size and number from person to person. The appearance you described, with small, bump-like structures that are not painful or itchy, is typical for this condition.

If you are still feeling uneasy about your diagnosis or if you have further questions, it might be beneficial to seek a second opinion from another urologist. They can provide additional reassurance or alternative perspectives on your condition.
In summary, ectopic sebaceous glands are generally a benign condition that does not require treatment unless symptomatic. Your observations of the bumps being painless and distributed in small patches are consistent with this diagnosis. However, maintaining open communication with your healthcare provider and monitoring any changes is always a good practice for your health and peace of mind.

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