Birthmark - Nevi

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Birthmark - Nevi
Birthmark - Nevi
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Video: How to remove birthmarks 2023, February


Birthmarks (nevi) are benign malformations of the skin or mucous membrane in which normal cells or tissue are reduced, increased or unevenly arranged. The term "liver spots" is also often used. However, these actually only include the most common subgroup of birthmarks, namely those that arise from an increase in pigment cells (melanocytes). Nevi can already be present at birth (congenital) or only develop in the course of life (acquired)…


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  • What are the symptoms?
  • How can you prevent malicious changes?
  • How is diagnosis & therapy carried out?
  • Whom can I ask?
  • How are the costs going to be covered?

What are the symptoms?

Acquired nevi (liver spots) often develop during childhood through young adulthood. A few, sometimes hundreds, of acquired nevi can be found in almost everyone. Usually these are less than half a centimeter in size.

Congenital birthmarks can be less than an inch or entire parts of the body. Typical characteristics are a jagged, sometimes warty surface, increased pigmentation in various shades of brown and hair in places. They often change their shape and color in the course of life. Often they become lighter in the first ten years of life, in rarer cases also darker. Large nevi often have a somewhat uneven color distribution from birth.

How can you prevent malicious changes?

Most moles are harmless skin changes. In rare cases, however, a nevus can develop into malignant melanoma. In addition to using the sun sensibly, you should also check yourself regularly in order to detect any malignant changes in your birthmarks as early as possible.

For more information, see Skin Self-Examination.

How is diagnosis & therapy carried out?

The dermatologist examines the nevus concerned with the naked eye and possibly microscopically. If necessary, a tissue sample is taken under local anesthesia and examined more closely. Moles suspected of malignant degeneration are surgically removed by a dermatologist under local anesthesia.

Whom can I ask?

You should see a dermatologist immediately if there are changes in a mole such as:

  • single darker spot,
  • newly emerging nodes,
  • non-healing wounds,
  • other rapidly evolving changes.

In addition, an annual dermatologist check-up of the entire skin surface is recommended.

How are the costs going to be covered?

All necessary and appropriate therapies are covered by the health insurance carriers. Your doctor or the outpatient clinic will generally settle accounts directly with your health insurance provider. With certain health insurance providers, however, you may have to pay a deductible (BVAEB, SVS, SVS, BVAEB).

However, you can also use a doctor of your choice (ie doctor without a health insurance contract) or a private outpatient clinic. For more information, see Costs and Deductibles.

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