Black Bumps on the Penis: Causes and When to Seek Help - Urology

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A black raised lesion has developed on the penis?


Hello doctor, I have a black raised bump on my penis that looks somewhat like a blood blister.
It has grown quite large and feels soft to the touch.
Is this a mole? If not, what could it possibly be? Also, do I need to seek medical attention for this?

Mr. Lin, 10~19 year old female. Ask Date: 2021/09/06

Dr. Du Shixi reply Urology


Hello: You should seek medical attention for your condition.
Wishing you good health.

Reply Date: 2021/09/06

More Info


When it comes to skin issues, particularly those occurring in sensitive areas such as the genital region, it is crucial to approach the situation with caution and seek professional medical advice when necessary. The presence of a black bump on the penis, especially one that feels soft and resembles a blood blister, can be concerning and may indicate a variety of conditions.

Firstly, it is essential to understand that not all bumps or lesions on the skin are the same. The black bump you described could potentially be a number of things, including but not limited to:
1. Seborrheic Keratosis: These are benign growths that can appear as black or brown bumps on the skin. They are usually harmless and do not require treatment unless they become bothersome.

2. Moles (Nevi): A mole can sometimes change in appearance, including color and texture. If a mole becomes darker or changes shape, it is advisable to have it evaluated by a dermatologist.

3. Pearly Penile Papules: These are small, soft, dome-shaped bumps that can appear around the corona of the penis. They are normal anatomical variations and are not harmful.

4. Folliculitis: This is an inflammation of the hair follicles that can lead to red or dark bumps, often accompanied by discomfort or pain.

5. Cysts: Epidermoid cysts can occur in various locations on the body, including the genital area. They are typically soft and can sometimes become inflamed or infected.

6. Genital Warts: Caused by the human papillomavirus (HPV), these can appear as small, flesh-colored or dark bumps. They may require treatment to prevent spreading.

7. Melanoma: While less common, any new or changing skin lesion, especially one that is dark in color, should be evaluated to rule out skin cancer.

Given the variety of potential causes, it is crucial to seek medical attention, especially since the bump has changed in size and texture. A healthcare professional, particularly a dermatologist or urologist, can perform a thorough examination and may recommend a biopsy or other diagnostic tests if necessary.
In terms of when to seek help, consider the following guidelines:
- If the bump changes in size, shape, or color: Any significant changes in a skin lesion warrant a medical evaluation.

- If it becomes painful or shows signs of infection: Symptoms such as increased redness, swelling, warmth, or discharge may indicate an infection that requires treatment.

- If you experience other symptoms: Accompanying symptoms such as fever, systemic illness, or changes in urination should prompt immediate medical attention.

- If you have concerns about sexually transmitted infections (STIs): If there is a possibility of exposure to STIs, it is essential to get tested and treated accordingly.

In conclusion, while some skin lesions may be benign, it is always better to err on the side of caution. Consulting a healthcare provider will not only provide peace of mind but also ensure that any necessary treatment is initiated promptly. Remember, early detection and intervention are key to managing any potential health issues effectively.

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