Unidentified Bumps on the Penis: Causes and Concerns

Unidentified lump on the penis?

Hello, doctor! I would like to ask you about a mysterious bump that has appeared on the underside of my penis, just below the glans.
It doesn't seem like a tumor; it feels more like a blood vessel with a bubble sensation when touched, is movable, and is not painful.
There is no redness or swelling, and it only appears when I am erect; I can hardly feel it when not erect.
I have the impression that it appeared suddenly, and I am unsure what it is.
I have been concerned it might be penile cancer, and it has been present since around mid-August.

Zhe, 20~29 year old female. Ask Date: 2020/12/09

Dr. Xu Wencang reply Urology

Please visit the outpatient clinic for an examination.

Reply Date: 2020/12/09

More Info

When it comes to unidentified bumps on the penis, particularly those that appear under the glans (the head of the penis), it is essential to approach the situation with a clear understanding of potential causes and concerns. Based on your description, the bump you are experiencing seems to be non-painful, movable, and only noticeable during an erection. These characteristics can help narrow down the possibilities.

One common cause of such bumps is a condition known as a penile papule or pearly penile papules. These are small, benign growths that can appear around the corona (the ridge of the glans) and are often mistaken for warts or other lesions. They are typically harmless and do not require treatment unless they cause discomfort or anxiety.

Another possibility is a cyst or a blood vessel anomaly, such as a varicocele or a small vascular malformation. These can sometimes feel like a bump and may be more prominent during an erection due to increased blood flow. If the bump is soft and can be moved around, it is less likely to be a tumor or a malignant growth.

In some cases, the bump could be related to a condition called Peyronie's disease, where fibrous scar tissue develops inside the penis, causing curved, painful erections. However, this condition usually presents with additional symptoms, such as pain or a noticeable change in the shape of the penis during erections.

While the absence of pain and redness is reassuring, it is crucial to monitor the bump for any changes in size, shape, or associated symptoms. If the bump persists or if you notice any new symptoms, such as pain, discharge, or changes in sexual function, it is advisable to seek a consultation with a healthcare provider, preferably a urologist. They can perform a physical examination and may recommend imaging studies or other diagnostic tests to rule out any serious conditions, including penile cancer, although this is rare in younger individuals.

In summary, while the bump you described is likely benign, it is essential to remain vigilant and consult a healthcare professional if you have any concerns. Regular self-examinations and awareness of your body can help you catch any changes early, and a urologist can provide peace of mind and appropriate management if needed. Remember, it is always better to err on the side of caution when it comes to your health.

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