Why does the white mark show on your skin when something scratches you?

The white mark that shows on your skin when something scratches you is called a dermal abrasion or scratch mark. It is caused by the breaking of the skin's surface, which allows the underlying blood vessels to show through. The white color is due to the reflection of light off of the blood vessels.

The severity of a dermal abrasion can vary depending on the depth and length of the scratch. Minor dermal abrasions may only cause a small, superficial wound that heals quickly without leaving a scar. However, more severe dermal abrasions can cause deep wounds that may require stitches to close and can leave a permanent scar.

In addition to the white mark, dermal abrasions can also cause other symptoms, such as:

* Pain

* Bleeding

* Bruising

* Swelling

* Infection

If you have a dermal abrasion, it is important to keep the wound clean and dry to prevent infection. You should also avoid picking or scratching the wound, as this can further damage the skin and delay healing. If the wound is deep or does not heal properly, you may need to see a doctor.

Here are some tips for preventing dermal abrasions:

* Be careful when handling sharp objects.

* Wear protective clothing when working with hazardous materials.

* Keep your skin moisturized to help prevent dryness and cracking.

* Avoid scratching or picking at your skin.