Black Skin Lesions on the Scrotum: Causes and Treatments - Dermatology

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Scrotal black substance issue?


I have no sexual experience, but a few days ago I noticed that the skin on my scrotum feels strange, almost like snake skin.
Later, it started to crack and is quite painful.
This morning, I saw some skin that had fallen off, and there was a black substance.
What could this be? How should I treat it? Is it a sexually transmitted infection?

Xiao Mian Yang, 10~19 year old female. Ask Date: 2014/03/29

Dr. Wu Yuxin reply Dermatology


It's hard to determine.
If you're worried, it's best to seek medical attention.

Reply Date: 2014/03/29

More Info


Black skin lesions on the scrotum can be concerning, especially when accompanied by symptoms such as peeling, pain, and the presence of dark material. While I cannot provide a definitive diagnosis without a physical examination, I can offer some insights into potential causes and treatment options based on common medical knowledge.


Possible Causes
1. Dermatitis: This is an inflammation of the skin that can result from various irritants or allergens. Contact dermatitis, for instance, can occur due to exposure to soaps, detergents, or even friction from clothing. Symptoms may include redness, itching, and peeling.

2. Fungal Infections: Conditions like tinea cruris (jock itch) can cause scaly, itchy patches in the groin area, including the scrotum. Fungal infections can lead to darkening of the skin and may cause peeling.

3. Psoriasis: This chronic skin condition can affect various parts of the body, including the genital area. It is characterized by red, scaly patches that can sometimes appear darker in color.

4. Lichen Planus: This inflammatory condition can cause purple, itchy lesions on the skin and mucous membranes. It can also affect the genital area, leading to discomfort and changes in skin texture.

5. Sexually Transmitted Infections (STIs): While you mentioned you have no sexual experience, it’s still important to consider that some infections can be transmitted in non-sexual ways or may not be related to sexual activity at all. Conditions like herpes or molluscum contagiosum can cause lesions in the genital area.

6. Skin Cancer: Although less common, certain types of skin cancer can present as dark lesions on the skin. It’s crucial to monitor any changes in the skin, especially if they persist or worsen.


Treatment Options
1. Topical Treatments: Depending on the cause, over-the-counter antifungal creams or hydrocortisone creams may help alleviate symptoms. If dermatitis is suspected, avoiding irritants and using gentle, fragrance-free products can be beneficial.

2. Prescription Medications: If a fungal infection or another specific condition is diagnosed, a healthcare provider may prescribe stronger topical or oral medications.

3. Moisturizers: Keeping the area moisturized can help with dryness and peeling. Look for products that are free of fragrances and irritants.

4. Avoiding Irritants: Wearing loose-fitting, breathable underwear and avoiding harsh soaps or chemicals can help prevent further irritation.

5. Consultation with a Dermatologist: Given the symptoms you described, it’s essential to consult a healthcare professional, preferably a dermatologist. They can perform a physical examination, possibly conduct a biopsy if necessary, and provide a precise diagnosis and tailored treatment plan.


Important Considerations
- Do Not Self-Diagnose: While it’s helpful to gather information, self-diagnosing can lead to inappropriate treatment. Always seek professional advice for skin concerns, especially when lesions change in appearance or cause discomfort.

- Monitor Symptoms: Keep track of any changes in your symptoms, such as increased pain, spreading of lesions, or new symptoms. This information can be valuable for your healthcare provider.

- Hygiene Practices: Maintaining good hygiene is crucial, especially in sensitive areas. Regularly washing with mild soap and ensuring the area is dry can help prevent infections.

In conclusion, while there are various potential causes for the black skin lesions on your scrotum, a thorough evaluation by a healthcare professional is necessary for an accurate diagnosis and effective treatment. Don’t hesitate to seek medical attention, as early intervention can lead to better outcomes.

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