Assessing the Risks of Moles: When to See a Dermatologist

The dangers of moles?

Hello Doctor,
I would like to ask if this mole poses any danger.
Here is the appearance image: https://drive.google.com/file/d/1GeiE97gOmzcva5Nttythmhb16jUQCrf5/view?usp=sharing.
This used to be a small mole, and when I was in elementary or middle school, I scratched it out of curiosity.
After one instance of scratching, it bled and formed a scab, and then it grew larger.
(This is estimated to have happened about 5 to 6 years ago, and it seems to have stopped growing now.) The size is approximately 0.4 to 0.5 cm, located on my chin.
I have been monitoring it continuously, and there is no redness, swelling, or pain.
The center is slightly depressed and darker in color (could this be because I scratched off some of the tissue?).

Doctor, do you think I need to see a dermatologist for evaluation, or can I continue to monitor its size and symptoms myself? Thank you!

Alan, 20~29 year old female. Ask Date: 2017/12/20

Dr. Wu Yuxin reply Dermatology

Medical regulations state that "a physician must personally examine a patient before providing treatment or prescribing medication..." Therefore, online diagnosis is also not permitted.
If you are experiencing significant distress, please seek medical attention promptly.

Reply Date: 2017/12/20

More Info

When it comes to assessing moles and determining whether they pose any risks, it is essential to understand the characteristics that can indicate a potential problem. Based on your description and the history of the mole, there are several factors to consider.

Firstly, the fact that the mole has changed in size and appearance over the years is significant. Moles that are stable and do not change in size, shape, or color are generally considered benign. However, any mole that has a history of trauma, such as being picked at or scratched, may exhibit changes that warrant closer observation. In your case, since the mole has been manipulated in the past, it is crucial to monitor it closely for any further changes.

The characteristics of the mole you described include:
- Size: Approximately 0.4 to 0.5 cm, which is relatively small, but size alone is not the only factor to consider.

- Color: You mentioned that the center is darker, which could be a result of the trauma it experienced. However, a change in color, especially if it becomes uneven or has multiple colors, can be a warning sign.

- Shape: If the mole has irregular borders or an asymmetrical shape, it may be more concerning.

- Symptoms: The absence of redness, swelling, or pain is a positive sign, but any new symptoms should be taken seriously.

The ABCDE rule is a helpful guideline for assessing moles:
- Asymmetry: If one half of the mole does not match the other half.

- Border: If the edges are irregular, ragged, or blurred.

- Color: If the color is not uniform and has different shades of brown, black, or other colors.

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

- Evolving: If the mole changes in size, shape, color, or elevation, or if new symptoms develop.

Given your description, it seems that the mole does not currently exhibit alarming characteristics, but the history of trauma and the fact that it has changed in the past are reasons to remain vigilant. It is advisable to schedule an appointment with a dermatologist for a professional evaluation, especially since you have been monitoring it for several years. A dermatologist can perform a thorough examination and may recommend a biopsy if there are any concerns.

In summary, while your mole may not currently appear dangerous, the history of trauma and the potential for changes necessitate a professional assessment. Regular monitoring is important, but proactive evaluation by a dermatologist can provide peace of mind and ensure that any potential issues are addressed promptly. If you notice any changes in the mole's appearance or if you develop any new symptoms, do not hesitate to seek medical attention sooner rather than later.

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