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

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There is a lump at the base of the penis that resembles a tumor!


Hello Doctor: I have a lump-like protrusion at the base of my penis, approximately 1 cm in diameter, which is painful to touch.
About a month ago, I had a similar growth, but it eventually disappeared.
I noticed this new one two or three days ago.
I usually wear tight-fitting shorts while exercising, and sometimes I don't shower immediately after working out.
Could it be possible that the friction between my shorts and penis, combined with poor hygiene habits, has caused an inflammatory response? (The timing of the discovery coincides closely with my exercise routine, and the symptoms appeared around the same time.) Or could there be another underlying cause for these symptoms? I would appreciate your guidance, thank you!

garciaparra, 20~29 year old female. Ask Date: 2004/10/29

Dr. Pan Zhenqin reply Urology


Based on your description, it is likely folliculitis.
You may want to closely examine whether the lump originates from the root of a hair follicle and if there are white spots on the surface resembling pimples.
Pay attention to your personal hygiene and keep the area dry, which should help reduce the incidence.
If you still have doubts, please visit the urology clinic for confirmation.
The Urology Department of Tainan Hospital wishes you health and safety!

Reply Date: 2004/10/29

More Info


It sounds like you're experiencing a concerning issue with a painful bump at the base of your penis, which can understandably cause anxiety. Based on your description, there are several potential causes for this bump, and it's important to consider them carefully.

Firstly, the bump you are experiencing could be a result of friction or irritation from wearing tight clothing, especially during physical activities. Tight-fitting underwear or athletic wear can cause chafing, leading to localized inflammation and the formation of bumps. This is particularly plausible given that you mentioned the bump appeared around the same time as your exercise routine. If you have not been able to maintain proper hygiene after exercising, this could exacerbate the irritation and lead to inflammation.

Another possibility is that the bump could be a sebaceous cyst, which is a common and usually harmless condition. These cysts can form when sebaceous glands become blocked, leading to a buildup of sebum. They can sometimes become inflamed or infected, resulting in pain and discomfort. If the bump is soft and movable, it might be a cyst.

Additionally, you should consider the possibility of a sexually transmitted infection (STI) or other dermatological conditions. Certain infections can cause painful lesions or bumps in the genital area. For instance, herpes simplex virus can lead to painful blisters, while warts caused by human papillomavirus (HPV) can also appear as bumps. If you have had unprotected sexual contact, it is essential to consider this possibility.

Given that you mentioned a similar bump appeared a month ago and resolved on its own, it might suggest a recurring issue related to irritation or a benign condition. However, the fact that this current bump is painful and has not resolved quickly warrants further investigation.

Here are some recommendations for you:
1. Hygiene: Ensure that you maintain good hygiene, especially after exercising. Showering promptly after workouts can help reduce the risk of irritation and infection.

2. Clothing: Consider wearing looser-fitting underwear and clothing during physical activities to minimize friction.

3. Observation: Monitor the bump for any changes in size, color, or pain level. If it becomes larger, more painful, or shows signs of infection (such as redness, warmth, or discharge), seek medical attention.

4. Consult a Healthcare Provider: It is crucial to consult a healthcare professional for a proper diagnosis. They may perform a physical examination and, if necessary, conduct tests to determine the exact cause of the bump. This is especially important if you have concerns about STIs or if the bump persists.

5. Avoid Self-Diagnosis: While it can be tempting to search for answers online, self-diagnosis can lead to unnecessary worry or mismanagement of the condition. A healthcare provider can provide you with accurate information and appropriate treatment options.

In conclusion, while the bump at the base of your penis may be related to friction or irritation, it is essential to consult a healthcare professional to rule out any serious conditions and receive appropriate care. Taking these steps will help ensure your health and peace of mind.

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