Changes in Moles: When to See a Dermatologist

Questions about moles?

Hello Doctor: I have had a mole (light brown in color) on the lower left side of my back (around the hip area) since I was young.
Around August of this year, I noticed that the skin surrounding the mole has darkened, and now the area of darkened skin has expanded (irregular shape).
Sometimes it also feels a bit itchy (I suspect it might be due to friction from wearing pants).
I'm not sure if I should see a doctor about this.

Luo, 20~29 year old female. Ask Date: 2015/11/25

Dr. Wu Yuxin reply Dermatology

If there are any changes, it is advisable to seek medical attention promptly.

Reply Date: 2015/11/25

More Info

When it comes to changes in moles or skin lesions, it is crucial to be vigilant and proactive about your skin health. The mole you described, which has changed in color and has an irregular shape, along with the accompanying itching, warrants a visit to a dermatologist. These changes can be indicative of various skin conditions, including but not limited to benign nevi (moles) or potentially more serious conditions like melanoma.

Moles, or nevi, are common skin growths that can vary in color, size, and shape. While many moles are benign, changes in their appearance can be a warning sign. The ABCDE rule is a helpful guideline for assessing moles:
- Asymmetry: If one half of the mole does not match the other half.

- Border: Irregular, scalloped, or poorly defined edges.

- Color: A variety of colors (brown, black, tan, red, white, or blue) within the same mole.

- 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.

In your case, the deepening of the color around the mole and the irregular shape are concerning signs. The itching could be a result of irritation from clothing, but it can also be associated with changes in the mole itself. It is essential to have a dermatologist evaluate these changes, as they can perform a thorough examination and may recommend a biopsy to rule out any malignant changes.

In addition to the ABCDE rule, other factors can increase the risk of skin cancer, including a family history of skin cancer, a personal history of atypical moles, and excessive sun exposure. If you have any of these risk factors, it becomes even more critical to monitor your skin closely and seek professional advice when changes occur.

When you visit the dermatologist, be prepared to discuss your mole's history, including when you first noticed it, any changes over time, and any family history of skin conditions. The dermatologist may use dermatoscopy, a non-invasive imaging technique, to examine the mole more closely. If there is any suspicion of malignancy, they may perform a biopsy, which involves removing a small sample of the mole for laboratory analysis.

In summary, given the changes you've observed in your mole, it is advisable to schedule an appointment with a dermatologist as soon as possible. Early detection and intervention are key in managing skin health and addressing any potential issues before they become more serious. Remember, it is always better to err on the side of caution when it comes to changes in your skin.

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