Pigmented Dermatofibroma: What to Know

Dermatofibromas are small, solid growths in the skin that can feel firm and may dimple inward when gently pinched. They often occur on the limbs and can be brown, pink, or darker than nearby skin. Pigmentation can make one resemble a mole or another skin growth, so appearance alone cannot confirm the diagnosis.

A clinician may use a dermatoscope and consider the lesion's history, texture, borders, and colour pattern. If uncertainty remains, a biopsy or complete removal may provide tissue for diagnosis. Do not try to cut, freeze, or burn the nodule at home.

Take a clear photograph with a scale beside the lesion and note any change in size, shape, colour, sensation, or bleeding. Reduce friction from shaving or tight clothing if the nodule is repeatedly irritated. If it is confirmed as a dermatofibroma and causes no problem, observation may be reasonable.

Removal is an option when the diagnosis is uncertain or the lesion is persistently painful, itchy, or troublesome. Surgical excision removes the nodule but leaves a wound and a scar; your clinician can discuss the likely scar location and care.

Book a prompt skin review for a nodule that is enlarging, developing uneven colour or borders, bleeding, ulcerating, becoming painful, or looking different from your other lesions. Seek urgent help for uncontrolled bleeding or rapidly worsening redness, warmth, and discharge after a procedure.

Ask how confident the diagnosis is, whether dermoscopy or biopsy is needed, what excision would involve, and how the scar would be cared for afterward.