#melanoma - warning signs of this dangerous and aggressive type of skin cancer.

In the skin, we can find various types of spots or marks, flat or raised, in different colors (shades from pink to dark brown or black), which are generally called "moles". Even though very common in most people, some moles can be dangerous, premalignant or even malignant (melanoma). That's why it is very important to watch them closely: after reading this article, finding any symptom or warning sign, look for a dermatologist. 
Among the three forms in which skin cancer appears, the most dangerous is known as melanoma, the one that quickly spreads and causes early metastases. 

How to identify the signs of a possible melanoma? 

1. Asymmetry 

Moles or birthmarks that become asymmetric can be alarming. For a better comprehension, I compare such asymmetry to a geographical map, ie, instead of spherical or oval, its shape becomes quite irregular. 

2. Size 

Generally, moles have up to 1 cm in diameter. If a mole gets larger or a fast growing is noted, pay attention in the changes or go directly to your dermatologist. 

3. Sudden or unexpected mole: beware! 

A mole that suddenly presents colors changes or that is growing rapidly is also suspect: this is another warning sign of a malignant lesion. 

4. Variation of colors 

Normal moles, in most cases, have homogeneous and uniform colors. A mole that presents many different colors (light brown, dark brown, black, blue, white, red, etc.) is suspect and should be investigated by your doctor. 

5. A mole with symptoms: inflammation, pain, burning or bleeding 

In this case, pay attention to the changes occurring in the lesion and visit a dermatologist immediately. 

6. Undefined or irregular edges

If the beginning and the end of a mole is not easily found, or if the edges are not well defined, attention, because it can be a dangerous lesion: benign moles have regular and well defined borders. 

7. Positive family history

If your family has a positive history of skin cancer, especially melanoma, it is highly recommended a regular follow up with the dermatologist. Some genetic / hereditary factors may favor the onset of malignant skin lesions.