Becker's Nevus: Symptoms, Concerns, and Next Steps - Dermatology

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Becker's nevus


I recently had a biopsy at Chang Gung Memorial Hospital and learned that the pigmentation on my chest is a Becker's nevus.
However, the doctor mentioned that it wouldn't spread and wouldn't cause any discomfort.
Yet, I often experience itching for periods of time, and the lesion seems to be spreading.
Should I consider switching hospitals for another biopsy? Can you recommend a hospital in Taipei?

IVY, 20~29 year old female. Ask Date: 2009/02/21

Dr. Zhang Zhibo reply Dermatology


Hello: Becker's nevus is a congenital lesion characterized by pigmentation, hair growth, and abnormal muscle proliferation, without any malignant transformation.
The results from a biopsy may be similar.
Generally, large hospitals in the northern region can perform biopsy examinations.
Treatment options include the use of lasers (pigmented lasers) to improve appearance, but observation without further treatment is also acceptable! The following link provides a typical presentation: http://en.wikipedia.org/wiki/Becker%27s_nevus.

Reply Date: 2009/02/21

More Info


Becker's Nevus, also known as Becker's melanosis, is a common skin condition characterized by a large, pigmented birthmark that typically appears during adolescence or early adulthood. It is usually found on the upper body, particularly the chest and shoulders, and is more prevalent in males. The nevus can vary in color from light brown to dark brown and may have coarse hair growth. While Becker's Nevus is generally considered benign and does not pose significant health risks, it can sometimes lead to concerns regarding its appearance and any associated symptoms.

In your case, it is important to address the symptoms you are experiencing, particularly the itching and the perceived expansion of the nevus. While Becker's Nevus is typically stable and does not spread, any changes in size, color, or texture should be evaluated by a healthcare professional. Itching can be a common symptom associated with various skin conditions, including benign nevi, but it can also indicate irritation or an allergic reaction. Therefore, it is crucial to monitor these symptoms closely.

If you are feeling uncertain about the diagnosis or the management of your Becker's Nevus, seeking a second opinion is a reasonable step. A dermatologist can provide further evaluation and may recommend additional tests, such as a repeat biopsy, to ensure that the nevus is indeed benign and not indicative of any other underlying condition. It is essential to have a thorough examination, especially if you notice any changes that deviate from the typical presentation of Becker's Nevus.

Regarding your question about where to seek further evaluation in Taipei, several reputable hospitals and dermatology clinics can provide specialized care. Some well-known institutions include:
1. National Taiwan University Hospital: This hospital has a comprehensive dermatology department with experienced specialists who can assess your condition and provide appropriate management.

2. Taipei Medical University Hospital: Known for its advanced medical services, this hospital also has a dedicated dermatology department that can address your concerns regarding Becker's Nevus.

3. Chang Gung Memorial Hospital: With multiple branches in Taipei, this hospital is well-regarded for its dermatology services and can offer a thorough evaluation of your condition.

4. Taipei Veterans General Hospital: This hospital is known for its excellent dermatology department and can provide specialized care for skin conditions.

When visiting a new healthcare provider, it is helpful to bring any previous medical records, including biopsy results and photographs of the nevus, to facilitate a comprehensive evaluation. Additionally, be prepared to discuss your symptoms in detail, including the duration of itching, any changes in the nevus, and any other skin concerns you may have.

In conclusion, while Becker's Nevus is generally a benign condition, your symptoms warrant further evaluation. Seeking a second opinion from a qualified dermatologist can provide you with peace of mind and ensure that you receive appropriate care. Don't hesitate to reach out to one of the recommended hospitals in Taipei for a thorough assessment of your condition.

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