Enlarged Blue Mole on Buttocks: Should You Be Concerned? - Dermatology

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When it comes to changes in moles or skin lesions, especially those that are enlarging, changing in color, or becoming raised, it is essential to approach the situation with caution. The mole you described on your buttocks, which has grown to about 10mm and feels firm to the touch, warrants a thorough evaluation by a healthcare professional, ideally a dermatologist.

Moles, or nevi, can vary widely in appearance and characteristics. While many moles are benign, certain changes can indicate potential malignancy, particularly if they exhibit the following features, often summarized by the ABCDE rule:
1. Asymmetry: One half of the mole does not match the other half.

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

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

4. Diameter: A mole larger than 6mm (about the size of a pencil eraser) should be evaluated.

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

The fact that your mole has increased in size and has become raised and firm could be concerning. While not all changes in moles indicate cancer, it is crucial to rule out the possibility of melanoma or other skin cancers. Melanoma can sometimes present as a blue or black mole, especially if it is atypical in appearance.

It is also important to consider other factors that may influence the risk of skin cancer, such as personal or family history of skin cancer, sun exposure, and skin type. If you have a history of atypical moles or skin cancer in your family, this could further increase your risk.

In terms of management, the best course of action is to schedule an appointment with a dermatologist. They will likely perform a thorough examination of the mole and may recommend a biopsy, where a small sample of the mole is removed and examined under a microscope to determine if it is cancerous. If the mole is found to be benign, the dermatologist may still recommend monitoring it for any further changes.

In summary, while not every change in a mole is indicative of cancer, the characteristics you described—enlargement, firmness, and elevation—are reasons to seek medical advice promptly. Early detection and treatment are key in managing skin cancers effectively, so do not hesitate to consult a healthcare professional for a comprehensive evaluation.