A – Z of Skin

Information for Skin, Hair and Nail Conditions


The A to Z of Skin information has been developed to help you understand more about common skin conditions and problems, and how these may be treated.

Both common and medical names have been included to help your search, as well as the names of medications and treatments. There are also a number of cosmetic topics which explain the latest treatments for cosmetic concerns related to the skin. Many College dermatologists have contributed to the information on this site.

The process has been overseen by a committee of dermatologists to ensure that the final versions are both accurate and user friendly. Particular thanks go to Dr Pam Brown, Dr Peter Berger, Dr Davin Lim, Dr Michelle Rodrigues, Dr Yin Vun, Conjoint Associate Prof Orli Wargon and Dr Eleni Yiasemides (Chair). The A to Z information is currently under development. Please check back on a regular basis for updates and the addition of new topics.

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  • Epidermolysis Bullosa

    Epidermolysis Bullosa (EB) is a group of rare inherited skin fragility disorders which are characterised by blistering of the skin with minor injury.

  • Fabry Disease

    Also known as ... Angiokeratoma Corporis Diffusum, Alpha-galactosidase A Deficiency, Anderson-Fabry Disease. Fabry disease is a rare genetic condition, belonging to a group of diseases called lysosomal storage diseases.

  • Female acne

    Female acne also known as adult acne, is acne that continues past the ages of 18 to 20 or starts in the early 20s in individuals who may not have had a previous problem with acne.

  • Female Pattern Hair Loss (FPHL)

    Also known as ... Androgenetic Alopecia in women Female pattern hair loss (FPHL) is the term used to describe genetic hair thinning in females. This condition can affect women of any age but is more common after menopause. Around 40% of women show signs of FPHL by age 50.

  • Fibrous Papule of the face

  • Fifth disease

    Fifth disease also known as erythema infectiosum is usually a harmless childhood viral infection characterised by a classic slapped-cheek appearance or a lacy patterned rash. The infection can be associated with fevers.

  • Flushing

    Flushing is a term used to describe transient and episodic reddening of the skin. It occurs most commonly on the face and neck but less conspicuous changes may occur over the entire body.

  • Follicular Degeneration Syndrome

    Follicular degeneration syndrome also known as Central centrifugal cicatricial alopecia (CCCA) is a chronic and progressive type of scarring alopecia that results in permanent hair loss. CCCA most commonly starts in the centre of the scalp and, without treatment, expands over time causing an irreversible area of baldness. It is most commonly seen in middle-aged African women.

  • Follicular Keratotic Naevus

    Also known as … Naevus Comedonicus, Comedonal Naevus and Pilosebaceous Naevoid Disorder. Naevus Comedonicus is a rare type of epidermal nevus. A benign overgrowth derived from a hair follicle unit.

  • Follicular lichen planus

    Follicular lichen planus also known as lichen planopilaris (LPP), is a rare inflammatory scalp disorder characterised by scarring alopecia (permanent hair loss) with several different patterns.

  • Follicular Mucinosis

    Also known as ... Alopecia Mucinosa Follicular mucinosis is a rare disorder affecting hair-bearing skin, most commonly on the scalp, head and neck. The name of the condition comes from the accumulation of mucin (jelly-like, semi-liquid material) in the walls of hair follicles.

  • Folliculitis

    Folliculitis means inflammation of the hair follicle. It is caused by infection, physical injury or chemical irritation. This results in a painful red spot, usually with an overlying pustule and central hair. The inflammation may be superficial or deep, and may affect all hair-bearing areas of the body.

  • Folliculitis barbae traumatica

    Folliculitis barbae traumatica also known as Pseudofolliculitis barbae is a chronic inflammation of hair-bearing areas of the skin caused by ingrown hairs that develop after shaving or plucking.

  • Folliculitis decalvans

    Folliculitis decalvans is an uncommon inflammatory scalp condition which can result in destruction of hair follicles and permanent loss of hair. The condition predominantly affects young and middle-aged adults and is more common in males. It can be hereditary in some families.

  • Folliculitis Keloidalis Nuchae

    Also known as Acne keloidalis nuchae (AKN) is a chronic inflammatory condition that affects hair follicles on the back of the neck. AKN is most commonly seen in men of African-Caribbean background but it is also seen in those of Hispanic, Asian, Middle Eastern and Mediterranean backgrounds. In rare cases, it may also be see in Caucasians. Whilst this condition mostly affects men, women may be affected in some cases (the ratio of  affected men to women is 20:1). The term AKN is misleading because the condition does not form true keloid scars and is not associated with acne.

  • Fonseca’s Disease

    Also known as … Chromoblastomycosis, Chromomycosis, Cladosporiosis, Verrucous Dermatitis, Pedroso’s Disease. Chromoblastomycosis is a long-term or chronic fungal infection of the skin and tissue underneath the superficial layer of the skin (called the subcutaneous tissue). It is more common in rural, tropical and subtropical areas of the world; it tends to present more severely in those with a suppressed or compromised immune system.

  • Forefoot dermatitis

    Forefoot dermatitis also known as juvenile plantar dermatosis, is a skin condition where there is cracking and peeling of the weight-bearing areas of the soles.