Moles distinguish people from others

Do you know your moles?

What are moles?

Moles are colloquially called birthmarks, and doctors call them nevus. Freckles and age spots are also liver spots. In the Middle Ages it was believed that these dark spots on the skin were caused by unsatisfied cravings during pregnancy. The more birthmarks you had, the worse your mother's sex was during pregnancy. Do you want to know? No. This dark fantasy could only originate from the dark Middle Ages.

Of course, moles have a different origin. They are growths of pigment cells - a malformation of the skin. Mostly they are darker than the surrounding tissue. The origin has different causes. Some are caused by predisposition, others by exposure to the sun and still others, for example, from medication, a weak immune system or hormonal changes during pregnancy or puberty. The exact causes for the development have not yet been clarified.

Who Has Moles?

All people have moles, both dark and light skinned. People with lighter skin have an average of 20. Shape, size and color vary widely. Infants are usually born without a mark, and the number increases over the course of life.

Do moles make you sick?

Let's put it this way: mostly not. Most people have no problem with the dark pigments in their entire lives. However, too much sunlight can turn liver spots into malignant cancer cells. That is why doctors in Germany recommend having the times checked every one to three years.

Who is particularly at risk?

Anyone can get skin cancer from abnormal liver spots. Three factors play a role:

  1. The color of the skin: Fair-skinned people are more at risk.
  2. The number of moles: the more moles a person has, the more likely it is to develop from cancer.
  3. The place of residence: Those who expose their skin to UV radiation in the sun often and for a long time increase the risk of skin cancer.

The Australians in particular suffer from skin cancer. All three factors come together here: Fair-skinned immigrants with a relatively large number of genetic moles live in a region with high UV radiation. The Australian government even banned tanning beds in early January to fight skin cancer.

Black skin cancer: close up of a melanoma

How do I know if there is a risk of cancer?

Black skin cancer can develop from a birthmark. The A-B-C-D-E rule can be used to determine whether one time develops into cancer. The chance that you have cancer is higher when the mole is asymmetrical is, and only irregular limited. In addition, the coloring (from English: Color) be unusual. For example, the mole can be blue, white, or red. Another sign of cancer can also be a growing one diameter be. You should keep an eye on it, especially with moles that are larger than six millimeters. E stands for Grandeur: If moles are bulging and palpable, they should be examined carefully. In addition, a malignant mole is constantly developing. It can bleed, oozes, itch, or crust.

Are some of the signs true? Then off to the dermatologist. If in doubt, the birthmark must be surgically removed.

What is the difference between white and black skin cancer?

Black skin cancer is also known as melanoma (from the Greek: melanos, in German: black) and occurs when the so-called melanocytes, the skin's pigment cells, degenerate.

The light skin cancer is further divided into two subcategories: the basal cell carcinoma or basalioma, which often shows itself through a shiny skin surface, and the squamous cell carcinoma or spinalioma, which is recognizable through its rough, wart-like surface - partly with scaling. Both occur almost always on parts of the body that have been exposed to UV radiation for a long time, for example on the - hairless - head or face, on the forearms and back of the hands, and on the shins.

How dangerous is cancer?

Black skin cancer is feared because it metastases in the body and quickly spreads to other organs. Light skin cancer is far more common, but less dangerous. According to information from the German Cancer Aid, almost 900,000 people are treated for skin cancer in Germany every year.