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Formation Of Moles


Moles, which are called melanocytic naevi among the medical professional, is usually a non-cancerous skin growth that could appear on any part of the body. They are always black or dark brown in color and can stand alone or in a small cluster. They differ in texture from individual to individual. In some people they are fine or smooth and in others they are rough to the touch. In a few instances they lie flat against the skin, while in other cases they will be raised, some might have hairs growing around them while others don’t.

Formation of moles on the skin

Moles develop when melanocytes which is a form of skin cells that gives every human their unique pigment, develop in clusters, instead of being uniformly dispersed throughout area of the skin. That is reason why they are usually darker than the surrounding area. Hormonal anomalies usually triggers the formation of moles and this can be due to:

Teenage:  As soon as a person is attaining the teenage hood, there are quite a few hormonal modifications that generally tend to arise. The formation of moles will be on the rise at some point of the teen years.

Pregnancy: When a woman becomes pregnant, a lot of physiological changes are bound to happen within her body. Although being pregnant does lead to the formation of moles on the body, however already existing moles coloration becomes darker.

Exposure to Sunlight: Prolonged contact with sunlight may cause the formation of moles too. The formation of moles that are triggered by sun rays are much more likely to evolve into cancer or melanoma.

It should be noted that when people with moles reach the age of 40 and above, most of the moles on the body will go down.

It is scientifically believed that genetic factor is behind the formation of moles on people’s body. If you have members of your family that have moles on their face or any part of their body there may be a greater probability that you can also suffer from mole growth at some point in your life.

Types of Moles

Despite the fact that all moles may appear to be identical to the novice eye, when closely inspected, you can point out or identify slight differences between the different types of moles. Some of the commonest types of mole are:

Junctional melanocytic naevi: They typically lie flat on the skin, having a round body with a brown or black coloration.


Dermal melanocytic naevi: They are usually protruding from skin and have light blue coloration. They have been seen to have hair around them.

Compound melanocytic naevi: They also protrude from the skin like the dermal melanocytic naevi. They generally have a light brown coloration and may have hair around as well.

Other uncommon types of moles are;

Halo naevi: In this type, the mole or moles have a faded round ring (or halo) that surrounds them. The skin loses all pigments around the ends of these moles.

Dyplastic naevi: They are also called Clark naevi. These moles are relatively massive and appear awkward.  Another type of mole which is uncommon is Blue naevi which are dark blue in color.

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