What does dermatologist mean?
A dermatologist is a fully qualified medical doctor who specializes in diagnosing and treating disorders of the skin, hair, and nails. The word derives from Greek roots — 'derma,' meaning skin, and '-logist,' meaning one who studies — reflecting the specialty's scientific foundations. Dermatologists manage an enormous range of conditions: common complaints such as acne, eczema, psoriasis, and fungal infections, as well as serious illnesses including skin cancers such as melanoma. They also perform procedures ranging from biopsies and mole removal to cosmetic treatments like laser therapy. Patients are usually referred to a dermatologist by a general practitioner when a skin condition proves persistent, severe, or suspicious. The word carries a professional, clinical register but is entirely familiar in everyday conversation, where it is the standard term for a skin specialist. Because skin is the body's largest organ and its most visible, dermatology sits at the intersection of medicine, appearance, and public health, making the dermatologist a widely recognized and trusted figure in modern healthcare.
nounA medical practitioner who specializes in the diagnosis and treatment of conditions of the skin, hair, and nails.
- A qualified medical doctor specializing in diseases and disorders of the skin, hair, and nails.
"After the mole changed shape and colour, her dermatologist scheduled a biopsy the same week."
"The dermatologist prescribed a topical cream that cleared up the eczema within weeks."
"As a consultant dermatologist at the teaching hospital, she trained residents in skin-cancer screening."
Regular plural formed by adding -s.
"Dermatologists recommend daily sunscreen use to reduce the risk of skin cancer."
The Greek word 'derma' means skin — so a dermatologist is literally a 'skin student,' though they spend years mastering everything from acne to melanoma.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of dermatologist
Dermatologist combines the Greek 'derma' (genitive 'dermatos'), meaning skin, with '-logist,' from Greek 'logos' (study) via French '-logue' and English '-ist.' The parent term 'dermatology' emerged in the late eighteenth and early nineteenth centuries as the medical study of skin diseases became formalized as a distinct specialty, with early dermatology societies founded in Europe during the nineteenth century. The same Greek root gives English words such as 'dermatitis,' 'epidermis,' and 'hypodermic.'
How dermatologist is actually used
The term is neutral and standard in both medical and everyday contexts; in casual speech people may say 'skin doctor.' In the US, 'board-certified' often qualifies the title to indicate formal certification by the American Board of Dermatology.
Easily confused with dermatologist
A cardiologist treats the heart and blood vessels, while a dermatologist treats the skin, hair, and nails.