Black Spots on the Glans and Skin Marks on the Foreskin - Urology

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Black spots on the glans and a ring-like mark resembling a rubber band around the outer skin of the foreskin?


Hello, Dr.
Du! I recently noticed a few small black spots on the glans (painless and itchless).
What could this be? I also observed a ring-like mark on the outer skin of the foreskin that resembles a rubber band (painless, itchless, and not raised).
I'm unsure if this is balanitis or another condition.
How should these two conditions be treated? Thank you.

Xiao Tong, 30~39 year old female. Ask Date: 2017/07/27

Dr. Du Shixi reply Urology


Hello, inflammation is usually characterized by redness, while darkening may be a change following inflammation.
It's important to keep the area clean and dry, and seek medical attention when possible.
As for the rubber band-like appearance, it may be in a narrower area of the skin; if it is not tight, there should be no issue.
Wishing you good health.

Reply Date: 2017/07/27

More Info


When it comes to the appearance of black spots on the glans and skin marks on the foreskin, it’s essential to approach the situation with a clear understanding of potential causes and treatment options. The presence of small black spots on the glans, especially if they are painless and not itchy, can be attributed to several benign conditions. These may include:
1. Pearly Penile Papules: These are small, harmless bumps that can appear around the glans and are often mistaken for warts or other lesions. They are a normal anatomical variant and do not require treatment unless they cause cosmetic concern.

2. Melanosis: This refers to the increased pigmentation of the skin, which can occur in various areas, including the genital region. Melanosis is typically benign and may not require intervention unless there are changes in size, shape, or color.

3. Seborrheic Keratosis: These are non-cancerous skin growths that can appear as dark spots on the skin, including the genital area. They are usually harmless but can be removed for cosmetic reasons.

4. Fungal Infections: While less common, certain fungal infections can cause dark spots or discoloration on the skin. These typically present with other symptoms such as itching or irritation.

As for the skin marks on the foreskin that resemble a "rubber band" mark, this could be due to a variety of factors, including:
1. Friction or Irritation: Repeated friction from clothing or sexual activity can lead to skin changes, including discoloration or indentations.

2. Lichen Simplex Chronicus: This is a condition characterized by thickened, darkened skin due to chronic scratching or irritation. It is usually associated with itching, but if there’s no itch, it may not be the case.

3. Circumferential Marks: These can occur due to the natural anatomy of the foreskin or from the use of tight-fitting clothing or devices.

In terms of treatment, if the spots and marks are asymptomatic (not causing pain or itching), they may not require any specific intervention. However, if there is any concern about the nature of these spots, or if they change in appearance, it is crucial to consult a dermatologist or urologist for a thorough examination. They may perform a biopsy if there is suspicion of a more serious condition, such as a skin cancer or other dermatological issues.

For cosmetic concerns, treatments may include:
- Laser Therapy: This can be effective for removing or reducing the appearance of pigmented lesions.

- Topical Treatments: Depending on the diagnosis, topical creams may be prescribed to help with pigmentation or irritation.

It is essential to avoid self-diagnosing or treating these conditions without professional guidance. Regular check-ups with a healthcare provider can help monitor any changes in the skin and ensure that any potential issues are addressed promptly.
In summary, while the presence of black spots on the glans and marks on the foreskin can be concerning, many cases are benign and do not require treatment. However, a professional evaluation is always recommended to rule out any serious conditions and to discuss appropriate management options tailored to your specific situation.

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