Dermnetnz.org

About DermNet NZ

Over time, it became clear that DermNet NZ should also focus on health professionals, researchers and students looking for up-to-date summaries about skin conditions and treatments. DermNet New Zealand is a Charitable Trust established in 2013 and led by a Board of Trustees. Its website is the world's most popular dermatology resource, loved by

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URL: https://dermnetnz.org/about-us

Topics A–Z DermNet NZ

Ultraviolet radiation and human health Umbrella tree Ungual squamous cell carcinoma in situ images Urachal cyst pathology Uraemic pruritus Urea Urticaria and urticaria-like conditions Urticaria images Urticaria in children Urticarial vasculitis Urticarial vasculitis images Urticaria – an overview Useful dermatology resources for health

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Hand care for healthcare workers DermNet NZ

Hand skin preservation tips for healthcare workers Sanitisers. Evidence-based Cochrane reviews confirm alcohol-based hand rubs are superior to regular hand washing for reducing transmission of diseases in hospitals and healthcare services. They also cause less irritation compared with soap and water.. At work, choose a colourless, alcohol-based hand cleanser without fragrances and perfumes.

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Morgellons disease DermNet NZ

A study arranged by the Centers for Disease Control (CDC) and Prevention in the US, concluded that collected fibres were mainly derived from fabric, such as cotton, and that the illness was associated with significantly reduced health-related quality of life [12].

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Skin disorders in doctors and nurses DermNet NZ

In the United States, the Occupational Health and Safety Administration (OSHA) estimates that 5.6 million healthcare workers annually suffer from mechanical injuries. This puts doctors and nurses at high risk for transmission of blood-borne diseases such as human immunodeficiency virus ( HIV ) , or hepatitis C. Secondary bacterial infection can

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Dermatomes DermNet NZ

A dermatome is an area of skin that is primarily supplied by a single nerve root: communicating sensation from this skin region to the brain. Somatosensation includes feedback from mechanoreceptors, thermoreceptors, proprioceptors, pain receptors, and chemoreceptors. Dermatomes are …

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Smoking and its effects on the skin DermNet NZ

Leung et al. Epidemiology and Health Services Research: Is skin ageing in the elderly caused by sun exposure or smoking? British Journal of Dermatology 2002; 147: 1187–1191. Just et al. Effect of smoking on skin elastic fibres: morphometric and immunohistochemical analysis. The British Journal of Dermatology 2007; 156: 85–91; Mills.

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Principles of dermatological practice. Examination of the

Proper use of language is necessary for diagnosis and to communicate with other health professionals. Nails are a specialised form of stratum corneum and are made predominantly of keratin. Their primary functions are for protection, scratching, and picking up small objects. When looking at the nails carefully inspect the nail plate and

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Vulval lumps and bumps DermNet NZ

The appearance of the vulva is highly variable (see Women's Health Victoria site, "the labia library".. Proliferative lesions affecting the vulva may originate from skin, mucosa or underlying connective tissue.. Skin lesions are mainly typical of those found elsewhere on the body, and are found on the outer aspects of the vulva, the labia majora, extending to the groin.

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Paronychia (nail fold infection): Causes, Images

Chronic paronychia is a gradual process. It may start in one nail fold, particularly the proximal nail fold, but often spreads laterally and to several other fingers. Each affected nail fold is swollen and lifted off the nail plate. This allows the entry of organisms and irritants. The affected skin may be red and tender from time to time, and

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Ultraviolet radiation and human health DermNet NZ

The consequences for human health of stratospheric ozone depletion in association with other environmental factors. Photochem Photobiol Sci 2015; 14: 53-87. Available from: DOI: 10.1039/c4pp90033b. Journal. Holick MF. Biological effects of sunlight, ultraviolet radiation, visible light, infrared radiation and vitamin D for health.

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Meralgia paraesthetica DermNet NZ

Meralgia paraesthetica (US spelling, paresthetica) describes a localised form of cutaneous dysaesthesia in which there is pain and a changed sensation in the skin on the lateral aspect of the thigh. Meralgia means pain in the thigh, and paraesthetica refers to burning pain, tingling or itch. Some patients describe itch in the affected area.

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Principles of dermatological practice. Examination of hair

Elsewhere. A complete examination should include inspection of terminal hair of the eyebrows, eyelashes, beard, axilla and pubic area as well as body hair generally.. In adolescents where relevant, note stage of pubertal development using Tanner growth charts. Premature pubarche refers to appearance of pubic hair without other signs of puberty before age 9 years in boys, before age 7 …

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Sexually transmitted diseases DermNet NZ

Sexual health services. In New Zealand, specialist confidential sexual health care is available free of charge at public hospitals. They offer diagnosis and treatment of STIs, counselling and education. Diagnosis and treatment is also available at family planning clinics and from your general practitioner.

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Achenbach syndrome DermNet NZ

Achenbach syndrome has been predominantly reported in middle-aged females, with a median age of onset of 48–50 years (range 22–76). Although said to be rare, a study of 802 members of the general population aged 18 to 84 years in three regions of France found a prevalence of 12.4% in women and 1.2% of men. It is possibly more common in

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Computer mouse dermatitis DermNet NZ

Computer mouse dermatitis is a contact dermatitis of the hand caused by irritants and/or allergens associated with the use of a computer mouse or mouse pad. Irritant contact dermatitis is the most common form of computer mouse dermatitis. It presents as a dry red scaling rash or as thickened and slightly pigmented rash at the base of the palm

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The gut microbiome in skin disease DermNet NZ

What are probiotics, prebiotics, and synbiotics? Probiotics are defined by the World Health Organisation (WHO) as “live microorganisms which when administered in adequate amounts, confer a health benefit on the host ” [5,10]. The most commonly used bacteria in probiotics are Lactobacilli and Bifidobacteria [2,5].. Prebiotics are non-digestible fibres that stimulate certain beneficial

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Skin barrier function DermNet NZ

Skin as a barrier. Skin is the largest organ of the human body and comprises three major layers; epidermis, dermis, and subcutis [see Structure of normal skin]. One vital function of the skin is to form an effective barrier between the organism and the environment. It maintains an ‘inside-outside’ barrier regulating water loss, and an ‘outside-inside’ barrier protecting the organism

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Vulvovaginal candidiasis (vaginal thrush) DermNet NZ

Vulvovaginal candidiasis refers to vaginal and vulval symptoms caused by a yeast, most often Candida albicans. It affects 75% of women on at least one occasion over a lifetime. Overgrowth of vaginal candida may result in: White curd-like vaginal discharge. Burning sensation in the vagina and vulva.

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Chloracne. MADISH DermNet NZ

Other health problems. Other health problems may include: Abnormal liver function; Tiredness (sleep disturbance) Nerve conditions (transient peripheral neuropathy, and encephalopathy – this can result in poor concentration and depression); High levels of circulating blood fats (hyperlipidaemia)Impotence

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Privacy policy DermNet NZ

2.3 We may also collect health information provided by you, such as your medical history, symptoms, medication, and health services you are currently being or have been provided. We use this information to correctly classify skin conditions on our image library, to provide information about skin conditions in our topic pages (in an anonymous way).

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Perianal streptococcal dermatitis DermNet NZ

Perianal streptococcal dermatitis presents with sharply demarcated redness, local swelling, and itch of the area around the anus. Symptoms may also include pain on passing a bowel motion, constipation, cracks in the anus, and discharge of pus and/or blood from the rectum. It may be accompanied by inflammation of the vulva and vagina

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Granuloma inguinale. Donovanosis DermNet NZ

Granuloma inguinale is a sexually transmitted infection (STI) caused by the bacteria previously classified as Calymmatobacterium granulomatosis and now reclassified as Klebsiella granulomatis. It is also called donovanosis after ‘Donovan bodies’, which are cellular components that are seen when scrapings from the genital skin lesions are

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Vitamin A toxicity DermNet NZ

It also called retinol. Vitamin A is needed for immunity, visual and dermatological health as well as cell communication and growth. In excessive amounts, however, it can accumulate in the liver and cause a wide array of symptoms. Toxicity is classified as either acute or chronic. Vitamin A toxicity is also known as hypervitaminosis A.

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Obesity and the skin DermNet NZ

Obesity is a chronic disease, defined as having a body mass index (BMI) over 30 kg/m 2. It is an increasing concern in healthcare across the world. The calculation of BMI considers both height and weight. Morbid obesity is a BMI over 40 kg/m 2 or a BMI over 35 kg/m 2 with an obesity-related health condition such as diabetes, hypertension, or

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Bacterial folliculitis DermNet NZ

Bacterial folliculitis affects children and adults, with adolescents and young adult males most often infected. It is prevalent worldwide. The following factors predispose to bacterial folliculitis: Maceration and occlusion (clothing, dressings, ointments) Frequent shaving, waxing or other forms of depilation. Friction from tight clothing.

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Psychological effects of acne DermNet NZ

Depression is an illness that can nearly always be treated effectively. See your family doctor for advice and if necessary, you may be referred to a health professional specialising in mental illness. Suitable treatments may include: Antidepressant medication

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COVID-19 images DermNet NZ

COVID-19 images — codes and concepts. open. Synonyms: SARS-CoV-2 rash images, Images of skin rashes caused by severe acute respiratory syndrome coronavirus 2. Categories: Viral infection, Images. Subcategories: Red face of COVID-19, Exanthem of COVID-19, Hand dermatitis of COVID-19, Rash on feet with COVID-19, Post-inflammatory desquamation

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Psychological effects of psoriasis DermNet NZ

Psoriasis is relatively common, affecting around 2–4% of the general population. It is associated with psoriatic arthropathy and several other health problems. Long-term, disfiguring scaling and redness on the face, neck and other readily visible portions of the body can cause severe negative psychological effects for people with psoriasis

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Mole mapping DermNet NZ

A report to the patient and/or referring health practitioner Follow-up digital dermatoscopic images in 3–6 months (short-term monitoring) Follow-up imaging of all imaged lesions at intervals of 1 to 2 years or as recommended by a doctor

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Rongoā Māori for the skin DermNet NZ

Originally practiced by Tohunga (medicine men), Rongoā involved a combination of chants, rites, and herbal remedies. While Tohunga were outlawed in 1907, the practice of Rongoā survived and today it is a recognised part of the New Zealand Māori health scene. Māori terms for skin disease

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Psychological effects of hair loss DermNet NZ

These symptoms can have a severe impact on an individual’s mental health, ability to work or study, and well-being. What is the treatment for anxiety/depression due to hair loss? Anxiety and depression caused by hair loss can be treated using cognitive behavioural therapy and support groups, as well as by medication such as antidepressants [9].

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Ramsay Hunt syndrome DermNet NZ

Ramsay Hunt syndrome is a rare peripheral facial neuropathy. It is a type of shingles due to reactivation of the varicella zoster virus (VZV) in the geniculate ganglion of cranial nerve VII, which supplies the facial nerve. Ramsay Hunt syndrome is characterised by unilateral facial weakness and painful blisters — either in the ear canal on

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Pemphigus DermNet NZ

Pemphigus. Authoritative facts from DermNet New Zealand. DermNet provides Google Translate, a free machine translation service. Note that this may not provide an exact translation in all languages

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Psychological effects of cutaneous lupus

Cutaneous disease is a feature of systemic LE in around 70% of patients. Common manifestations of cutaneous LE include: Persistent and disfiguring facial rashes. Photosensitivity. Hair loss. Cutaneous LE can have a profound effect on the individual’s mental and physical health.

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Psychosocial factors in Dermatology DermNet NZ

Introduction. Skin conditions can significantly influence psychological and social functioning. People with lesions on the face or hands have particularly high rates of mental health problems.. Stigmatisation, for example where others have avoided touch due to the skin condition, reinforces feelings of shame and can lead to depression and social anxiety.

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Staphylococcal scalded skin syndrome (SSSS) DermNet NZ

Staphylococcal scalded skin syndrome (SSSS) is an illness characterised by red blistering skin that looks like a burn or scald, hence its name staphylococcal scalded skin syndrome. SSSS is caused by the release of two exotoxins ( epidermolytic toxins A and B) from toxigenic strains of the bacteria Staphylococcus aureus.

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Acute hair matting DermNet NZ

Severe illness and poor mental health. What are the clinical features of acute hair matting? Acute hair matting presents with a stiff prominent and impenetrable mass of matted hair and, in many cases, is associated with a foul smell. The mass is usually made up of …

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Infantile haemangioma: Definition and pathogenesis

Infantile haemangioma with minimal or arrested growth (IH-MAG) has an abortive or minimal growth in 25% of the lesion’s surface area, appearing as telangiectatic patches with or without papules, lacking a significant proliferative phase. This may be mistaken for a port-wine stain [see Capillary vascular malformation].Occasionally these can be segmental with syndromic associations.

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Mycosis fungoides DermNet NZ

Mycosis fungoides in children. Mycosis fungoides is the most common primary cutaneous lymphoma (65%) in children but diagnosis is often delayed (2–5 years). The mean age at diagnosis is 10 years, and the sexes are affected almost equally. Most children present with non-classic and often multiple variants.

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Follicular disorders. Disorders of the hair and scalp

District Health Boards provide a subsidy to obtain a wig, if medically necessary. If bald patches are accompanied by inflammation (erythema, scaling, pustules) consider other reasons for hair loss in children: Tinea capitis (positive microscopy / culture of scale and extracted hair)

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Senile purpura DermNet NZ

Senile purpura is a common, benign condition characterised by the recurrent formation of purple ecchymoses (bruises) on the extensor surfaces of forearms following minor trauma. It is also known as Bateman purpura, after British dermatology pioneer Thomas Bateman, who first described it in 1818; and actinic purpura, because of its association

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Wood lamp skin examination DermNet NZ

Wood lamp examination is a diagnostic test in which the skin or hair is examined while exposed to the black light emitted by Wood lamp. Blacklight is invisible to the naked eye because it is in the ultraviolet spectrum, with a wavelength just shorter than the colour violet. The lamp glows violet in a dark environment because it also emits some

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Periocular dermatitis (Periorbital dermatitis): Symptoms

Periocular dermatitis is a localised form of periorificial dermatitis. It is characterised by small red scaly papules and pustules located around the eye [1]. Periorificial dermatitis includes perioral dermatitis or periocular dermatitis alone, or in association. Perioral dermatitis describes an eruption around the …

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Skin problems in motor vehicle repair workers

Ill health can adversely affect the quality of life; the ability to work in a chosen industry; insurance costs and litigation claims. A generic risk assessment in any motor vehicle repair establishment should include a specific section on skin exposure and should cover: Hazardous properties and adverse health effects from the exposure to chemicals

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