What Could This Black Bump on My Skin Be? Seeking Dermatology Advice - Dermatology

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What is this black protrusion?


Hello Doctor: I would like to ask what the black protrusion in the image below is.
This originally started as a small wound, but due to excessive picking, it has developed into the appearance shown in the picture, with a black, slightly raised area.
The wound has been in this state for about 1 to 2 months now.
Currently, it is not painful and does not feel warm.
Could this be melanoma? Should it be excised, or can it be treated with topical medication? I hope the doctor can help clarify this.
Thank you, Doctor.
The photo password is: 1122 http://ppt.cc/W1JBr

Wang, 20~29 year old female. Ask Date: 2016/10/26

Dr. Wu Yuxin reply Dermatology


Medical regulations state that "physicians must personally examine patients and are not allowed to provide treatment or prescribe medications without doing so," which means online diagnosis is also not permissible.
If you are experiencing significant distress, it is advisable to seek medical attention promptly.

Reply Date: 2016/10/26

More Info


When it comes to skin concerns, particularly those involving black bumps or changes in pigmentation, it is essential to approach the situation with caution and seek professional medical advice. Based on your description of a black bump that developed from a small wound, it is understandable to be concerned about the possibility of melanoma, a type of skin cancer. However, without a visual examination, it is impossible to provide a definitive diagnosis.

The transformation of a small wound into a black, slightly raised bump over a period of 1 to 2 months could be attributed to several factors. One possibility is that the bump is a form of post-inflammatory hyperpigmentation, which occurs when the skin darkens in response to injury or inflammation. This is common and usually benign, but it can take time to resolve. Another possibility is a benign skin lesion, such as a seborrheic keratosis or a dermatofibroma, which can also appear as dark, raised bumps on the skin.

However, it is crucial to consider the characteristics of the bump. Melanoma typically presents with asymmetry, irregular borders, multiple colors, a diameter larger than 6mm, and changes over time. If your bump does not exhibit these characteristics, it may be less likely to be melanoma, but this does not eliminate the need for a professional evaluation.

In terms of treatment, if the bump is determined to be benign, options may include observation, topical treatments, or even minor surgical procedures for cosmetic reasons. If there is any suspicion of malignancy, a dermatologist may recommend a biopsy to assess the tissue and determine the appropriate course of action.

Given the potential seriousness of skin changes, it is advisable to schedule an appointment with a dermatologist as soon as possible. They can perform a thorough examination, possibly including dermatoscopy, to assess the lesion more accurately. Additionally, they can provide guidance on whether any treatment is necessary and what steps you should take to monitor the area.

In the meantime, avoid picking at the bump, as this can lead to further irritation or infection. Keeping the area clean and protected is essential. If you notice any changes in size, color, or symptoms such as itching or bleeding, these are additional reasons to seek medical attention promptly.

In summary, while it is natural to be concerned about changes in your skin, especially after an injury, the best course of action is to consult a dermatologist who can provide a proper diagnosis and treatment plan tailored to your specific situation. Remember, early detection and intervention are key in managing any skin condition effectively.

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