Changes in Moles: When to Seek Dermatological Advice - Dermatology

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Regarding moles on the body?


Hello, doctor.
I would like to ask you about a mole on my thigh.
Recently, this mole has been painful and itchy, and there is some discharge.
This morning, I noticed that it has started to peel; it was originally black and has now turned a light brown.
I am wondering if this is related to any skin changes or if it is simply part of the mole's physiological cycle.
Thank you!

jackie, 20~29 year old female. Ask Date: 2010/05/01

Dr. Du Zhiqiang reply Dermatology


Dear Jackie: Changes in moles, especially if there is discharge and pain or itching, may be due to inflammation caused by friction.
Color changes, if there are no clinical symptoms present, are usually difficult to determine as malignant or benign.
If you have any doubts, please visit the outpatient clinic for a pathological biopsy, which can resolve the issue.
Wishing you safety and health.
Sincerely, Dr.
Du Zhi-Liang, Director of Dermatology, Taoyuan Hospital, Ministry of Health and Welfare.

Reply Date: 2010/05/01

More Info


When it comes to changes in moles, especially those that involve symptoms such as pain, itching, discharge, and changes in color or texture, it is crucial to seek dermatological advice promptly. The symptoms you describe regarding your mole on your thigh—pain, itching, and peeling—are concerning and warrant a professional evaluation.

Moles, or nevi, are common skin growths that can vary in color, shape, and size. While many moles are benign, changes in their appearance can sometimes indicate underlying issues, including skin cancer. The ABCDE rule is a helpful guideline for assessing moles:
- Asymmetry: One half of the mole does not match the other.

- Border: The edges are irregular, ragged, or blurred.

- Color: The color is not uniform and may include shades of brown, black, or even red, white, or blue.

- Diameter: The mole is larger than 6mm (about the size of a pencil eraser).

- Evolving: The mole is changing in size, shape, or color.

In your case, the fact that the mole has changed from black to a lighter coffee color, along with the symptoms of pain and discharge, suggests that it may not be behaving like a typical mole. These changes could indicate a condition known as dysplastic nevi or even melanoma, which is a serious form of skin cancer.

Additionally, the presence of discharge and peeling is not typical for benign moles and could suggest inflammation or infection. Conditions such as seborrheic keratosis, basal cell carcinoma, or even a benign cyst could also present with similar symptoms, but only a dermatologist can provide an accurate diagnosis.

Given the potential seriousness of these symptoms, I strongly recommend that you schedule an appointment with a dermatologist as soon as possible. During the consultation, the dermatologist will likely perform a thorough examination of the mole and may recommend a biopsy to determine if there are any cancerous cells present. Early detection is key in managing skin cancer effectively, and the sooner you seek help, the better your chances of a positive outcome.

In the meantime, avoid picking at or irritating the mole further, as this could lead to additional complications or infections. Keep the area clean and monitor for any further changes. If you notice any rapid changes, such as increased pain, swelling, or bleeding, seek medical attention immediately.

In summary, changes in moles, especially those accompanied by symptoms like pain, itching, and discharge, should not be taken lightly. It is essential to consult a dermatologist to ensure proper evaluation and treatment. Your health and safety are paramount, and taking proactive steps now can make a significant difference in your skin health in the future.

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