What is Lichen Planus?

3) What is Lichen Planus?

Lichen planus is three things: gross, embarrassing, and extremely itchy. I’ve had the same spot of LP on my ankle for more than 3 years. It changes shapes slowly, but it’s just as gross as it was when I first got it. (See it in all it’s beauty on my right ankle in the picture below).

It isn’t well characterized as to what exactly it is (other than immune cells invading your skin) but it is commonly seen with Hashimoto’s thyroiditis, and there is good evidence that it is an autoimmune disease (your skin cells have the same receptors that are implicated in Hashi’s). A thorough review of the literature will convince people that it is, and it is taught as if it were an autoimmune disease in many classes, although the exact mechanism isn’t well known.

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