This systematic review examines the various phenotypes and associated characteristics of atopic dermatitis. The majority of studies focus on disease severity, with a minority using data-driven approaches. There is a lack of uniformity and consistency in the use of phenotypes across studies.

Psoriasis is a chronic inflammatory disease that affects a small percentage of the world population. This review proposes a classification system to distinguish between cutaneous and systemic psoriasis, which could aid in better management of the disease.

Atopic dermatitis is a chronic inflammatory disease that affects the skin and can have a negative impact on quality of life. It is associated with systemic inflammatory disorders and can lead to other comorbidities such as allergies and respiratory issues. The disease is characterized by breakdown of the skin barrier and increased levels of immunoglobulin E.