5. Reversed
The main feature of this type of psoriasis is the particular type of injury it causes. The areas affected by inflammation have patches that are generally shiny, reddened, smooth, and with well-defined and sometimes moist edges. Inverse psoriasis shows with spots that are also damaged in a deep way between the folds of the skin causing bleeding. The affected areas are those where the skin makes folds such as navel, armpits, genitals and under the breast.
Overweight individuals have a more frequent predisposition to contracting reversed or inverse psoriasis. Even those with diabetes or with seborrheic skin, in which the amount of excess sebum causes inflammation. There is no definite age in which psoriasis arises, and affects both men and women, between 15 and 25 years. It has been concluded that about half of the cases of psoriasis are hereditary. It is believed that the inverse psoriasis is linked to a kind of Koebner phenomenon of not only mechanical nature (due to the rubbing of two neighboring surfaces), but also chemistry, caused by the variation of the PH of the skin.