Mole Shapes: When to Seek Dermatological Advice

The shape of a mole?

Hello Doctor, I recently noticed a mole on my back that looks different.
It doesn't appear to be a typical round shape, but it seems somewhat symmetrical.
(This picture was taken on June 17: https://drive.google.com/file/d/128CznjAuJt40e9sCizeBnUmo0i_iGJ-v/view?usp=drivesdk), (This picture was taken on July 25: https://drive.google.com/file/d/1OZ5DEq6tz44wxzVeYRT0TbG5KXFPqlOn/view?usp=drivesdk).
I can see that it has darkened significantly, but the size hasn't changed much.
1.
Is this shape normal? 2.
I have quite a few moles on my body, around ten near my neck and about twenty on my hands.
Is this normal?

Huang, 20~29 year old female. Ask Date: 2021/07/25

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, it is advisable to seek medical attention promptly.

Reply Date: 2021/07/25

More Info

When it comes to understanding mole shapes and when to seek dermatological advice, it is crucial to be vigilant about any changes in your skin, particularly with moles. The two images you provided, taken on different dates, indicate a change in color, which can be a sign that warrants further evaluation by a dermatologist.

1. Mole Shape and Color Changes: Moles that are asymmetrical, have irregular borders, or exhibit multiple colors can be concerning. The fact that your mole appears to have changed in color (becoming darker) while maintaining a relatively stable size is something to take seriously. According to the ABCDE rule for 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: Moles larger than 6mm (about the size of a pencil eraser) should be evaluated.

- Evolving: Any change in size, shape, color, or elevation, or any new symptom such as bleeding, itching, or crusting.

Given that your mole has changed in color, it is advisable to consult a dermatologist for a thorough examination. They may perform a dermatoscopic evaluation, which allows for a more detailed view of the mole, and if necessary, a biopsy to rule out any malignancy.

2. Presence of Multiple Moles: Having multiple moles on your body, such as the 10 on your neck and 20 on your hands, can be normal for many individuals. However, the total number of moles, their characteristics, and any changes over time are essential factors in assessing skin health. People with more than 50 moles are at a higher risk for melanoma, especially if they have atypical moles or a family history of skin cancer.
It is important to monitor your moles regularly and keep track of any changes. A good practice is to perform self-examinations monthly and document any changes in size, shape, or color. If you notice any concerning changes, or if you have a family history of skin cancer, it is wise to schedule regular check-ups with a dermatologist.

In summary, while having multiple moles can be normal, any changes in existing moles, particularly in color and shape, should prompt a visit to a dermatologist. Early detection is key in managing skin health and addressing any potential issues before they become serious. Always prioritize your skin health and do not hesitate to seek professional advice when in doubt.

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