Our mission
To make authoritative information about the skin available to anyone in the world with an internet connection.
DermNet NZ was founded 22 years ago by a group of Dermatologists from New Zealand. It has become a world-renowned resource of skin disease information.
Recently added pages
Melanocortin 1 receptor gene
Melanocytes make two forms of melanin in the skin, hair and eyes.
16 July
Medical hypnosis
Hypnosis, or hypnotherapy, induces someone to enter into a “trance state” using deep breathing and relaxation, meditation and guided imagery. It mandates...
16 July
Blood-based melanoma detection
Cutaneous melanoma is generally first suspected during a skin check and the diagnosis is confirmed by a positive skin...
16 July
Acne in children
Pre-pubertal acne has been classified by age groups according to a panel convened by The American Acne and Rosacea Society...
16 July
Keratoelastoidosis marginalis
Keratoelastoidosis marginalis is an acquired form of marginal keratoderma.
15 July
Melanoma in situ
Melanoma in situ is an early form of primary melanoma in which the malignant cells are confined to the tissue of origin,...
20 June
Atypical solar lentigo
An atypical solar lentigo is a solar lentigo with unusual characteristics.
24 June
Atopy patch test
The classical tests for immediate type I hypersensitivity (allergy) are specific immunoglobulin E (IgE) antibody levels, such as the radioallergosorbent test...
5 June
Listeriosis
Listeriosis is a bacterial infection caused by the bacteria Listeria monocytogenes.
24 March
Prader-Willi syndrome
Prader-Willi syndrome is the commonest genetic cause of obesity. It was first described in 1887 by Langdon-Down, 70 years before...
25 January
Guselkumab
Guselkumab is a biological treatment indicated for moderate-to-severe psoriasis.The US Food and Drug Administration (FDA) has approved guselkumab (Tremfya™, Janssen...
7 July
Rickettsia typhi
Rickettsiae are small, obligate intracellular, Gram negative bacteria that spend part of their life cycle in an arthropod host (tick,...
31 December
Climate change and skin
Climate change is a lasting alteration in patterns of weather caused by factors such as oceanic circulation, variations in solar...
16 January
Pemphigoid nodularis
Pemphigoid nodularis is a rare nodular variant of bullous pemphigoid.
5 November
Editor's choice
Smoking and the skin
Skin and hair are exposed to various environmental noxious agents, including tobacco smoke.
30 June
Thromboangiitis obliterans
Thromboangiitis obliterans is a smoking-related condition that results in blood clot formation (thrombosis) in small and medium sized arteries, and...
31 May
Male pattern hair loss
Hair loss resulting in thinning is known as alopecia.
9 July
Male genital dysaesthesia
Male genital dysaesthesia describes a sensation of burning, heat, irritation, discomfort or increased sensitivity to touch of the penis, foreskin...
12 September
Alcohol and skin disease
Excessive alcohol (ethanol) intake or alcohol abuse can result in many health problems and is implicated as a cause or...
2 December
Squamous cell carcinoma
Cutaneous squamous cell carcinoma (SCC) is a common type of keratinocytic or non-melanoma skin cancer.
16 January
Oral cancer
There are several types of oral cancers, but over 90% are squamous cell carcinomas.
10 February
Hairy tongue
Hairy tongue is an unusual, harmless condition characterised by a "hairy" enlargement and discolouration of the filiform papillae.
14 January
Guidelines for authors
Are you interested in writing for us? DermNet New Zealand is always looking for potential authors to write on new topics. Potential authors interested in writing a new page are generally asked to write a topic page on either a disease or condition, or a treatment, product or procedure.
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