Final answer:
Lichen sclerosus et atrophicus is a chronic skin disorder that causes thinning and scarring of the skin, and is most commonly found on the genital areas.
Step-by-step explanation:
Lichen sclerosus et atrophicus is 1) A type of skin disorder. It is a chronic condition that causes thinning, inflammation, and sometimes scarring of the skin. It is most commonly found on the genital areas, but can also affect the upper body, breasts, and upper arms. The exact cause is unknown, but it may be related to hormonal imbalances or an autoimmune reaction. This condition is different from other skin disorders such as eczema, which is an inflammatory condition, or acne, which involves the clogging of pores leading to infection and inflammation. Lichen sclerosus et atrophicus can cause significant discomfort and may require medical treatment to manage symptoms.