Where does oral lichen planus come from?
No expert is completely sure about the origin of the disease. But it is potentially caused by the body reacting to a psychological or emotional shock, in which the immune system is thought to be providing an autoimmune response.
In some cases, lichen planus can be associated with aggravating factors such as the presence of diabetes, arterial hypertension, hepatitis C, colitis or an allergic reaction to certain additives or drugs containing gold salts or sulfonamides . Stress can also be the source of the development of lichen planus.