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What is Koebner Phenomenon?
Koebner Phenomenon is a skin condition that is characterized by plaque forming on injured areas of the skin.
This condition aggravates the existing injury or forms new lesions on the injured area.
Koebner Phenomenon occurs in people who have been affected with Psoriasis.
This phenomenon is named after a German Dermatologist Dr. Heinrich Koebner, who was the first to notice this skin condition.
Meaning of terms involved in the understanding of Koebner Phenomenon
Skin Trauma - Any cuts, bruises, scratches, burns, tears, scrapes or lacerations are referred to as skin trauma.
Psoriasis is a skin condition that is caused by the rapid multiplication of skin cells in a short time. The newly formed cells push their way to the surface of the skin. This results in the skin becoming flaky.
Lesion - A damaged area of the skin.
Plaque - Skin Plaque is a lesion that is clearly visible and raised from the skin. It appears as a rough or smooth bump. The plaque can be white or red in color and can thicken to form a scab or crust.
Epidermis - Outermost layer of skin.
Dermis - The layer just below the outer layer of the skin.
Symptoms of Koebner Phenomenon
In Koebner Phenomenon, the following can happen to an injured area of the skin -
- new lesions form on the area of the skin that is damaged
- worsens the condition of the damaged skin
Causes of Koebner Phenomenon
When a person already has Psoriasis then the following can result in Koebner Phenomenon -
- minor cuts
- bug bites
- poison oak
- poison ivy
- chemical burns
- sun burns
- Herpes blister
Koebner Phenomenon can also be caused by injections, vaccines, acne, tattoo needles and acupuncture.
Protein induced Koebner Phenomenon
A protein called Stat 3 is involved in healing a wound. Usually, after the wound is healed the Stat 3 protein becomes inactive. In the case of Koebner Phenomenon the Stat 3 protein remains active and continues to produce more and more cells that result in thick patches of skin cells.
How to take care for Koebner Phenomenon skin condition
Koebner Phenomenon can be prevented by taking precautions and looking after your skin with great care.
1. After a bath gently pat your skin dry.
2. Apply a moisturizer to keep your skin hydrated.
3. Wear gloves when you work.
4. Avoid scratching or bruising your skin.
5.Wear soft clothing that does not scratch or irritate your skin.
6. Do not scratch your skin even if it itches.
7. If you get hurt, attend to it immediately.
8. Clean your nails to prevent fungal infection.
You have to take extra care to prevent Koebner Phenomenon.