If you are not exposed to a lot of dust in your daily life, you may not be able to observe this situation, but those who are exposed to a lot of dust and dirt due to their job have definitely noticed and questioned this.
So what makes scars distinctive from other areas of our skin?
The skin is one of our largest organs, consisting of tissue layers that protect the muscles and organs underneath.
This tissue of the skin is the first line of defense against germs and other foreign elements in the environment. It plays a major role in regulating body temperature and allows us to perceive sensations such as hot and cold.
However, when faced with injuries for some reasons, our skin turns into a different tissue area due to these scars. This difference manifests itself through visible changes such as redness, blistering and color changes.
There are some differences between normal skin tissue and scar tissue.
When our skin receives any damage and that area turns into a wound, the injured area no longer has exactly the same characteristics as the rest of our body tissue. Of course, both of these areas continue to include the underlying muscles, bones, and ligaments. It also consists of three main layers: epidermis, dermis and hypodermis.
However, these two different tissues differ in how collagen fibers connect with each other. While normal skin tissue consists of collagen fibers that are randomly oriented towards each other; Wounded tissue consists of collagen fibers oriented in one direction and parallel to each other.
In fact, why our scars do not collect dust is related to this tissue difference.
The formation of scars is a sign that the biological wound repair process in the skin has begun. This injured area also turns into an area of fibrous tissue that replaces normal skin after injury.
Again, unlike normal skin tissue, collagen fibers do not contain sweat glands as they are connected parallel to each other in these areas, and therefore dirt and dust do not stick to the scars.
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