Seborrheictype

Seborrheictype is a descriptive term used in dermatology to denote a skin and scalp phenotype characterized by increased sebum production (seborrhea) and oily, shiny skin. It is not a disease by itself but a label applied to patients whose sebaceous activity is prominent and may underlie or accompany several conditions, such as seborrheic dermatitis and acneiform disorders.

Pathophysiology typically involves heightened androgen activity, genetic predisposition, and microbial and inflammatory factors including Malassezia yeasts. The sebaceous glands may be more active in certain individuals, contributing to an oily skin surface and scalp.

Clinical features include greasy, pale or yellowish skin; a scalp that is oily with dandruff; and facial regions with dense sebaceous glands (forehead, nose, eyebrows) that appear shiny. In some presentations, inflammatory lesions such as papules or pustules can occur, especially when combined with acneiform processes or dermatitis.

Diagnosis is clinical, based on appearance and distribution of seborrhea. Laboratory tests are rarely required unless another skin condition or systemic issue is suspected.

Management aims to reduce sebum production and control inflammation. Regular gentle cleansing is recommended, along with topical antifungals (for example, ketoconazole or zinc pyrithione) to address Malassezia. Inflammatory components may respond to topical corticosteroids or calcineurin inhibitors. For acneiform aspects, topical retinoids or benzoyl peroxide are commonly used; systemic therapies (such as isotretinoin or anti-androgenic agents) may be considered under medical supervision in select cases.

Seborrheictype tends to be chronic with waxing and waning symptoms, often appearing or worsening during adolescence and periods of hormonal change, stress, or climate variation. Related concepts include seborrheic dermatitis, acne, and androgen-related sebaceous activity.