
A-Z OF SKIN
Search our A to Z of Skin to find out more about common skin conditions and problems, their symptoms, causes and how they are diagnosed and treated. You can search by both common and medical names, or by medicine or treatment name.
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. Our thanks go to the many College dermatologists have contributed to the information on this site.
The information provided in the A-Z of Skin is a general guide only and does not replace individual medical advice. Please speak to your doctor for advice about your situation. The ACD is not liable for any consequences arising from relying on this information.
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Sand-worm eruption
Sand-worm eruption also known as cutaneous larva migrans, is an itchy localised skin infestation caused by the penetration and migration of animal hookworm larvae through the skin.
MoreSarcoidosis
Sarcoidosis most commonly affects the lungs but can also affect the skin and other organs. It is characterised by the formation of “granulomas” in affected areas. These are organised collections of histiocytes (a special type of inflammatory cell).
MoreScabby mouth
Scabby mouth also known as Orf is an infection caused by the parapox virus which primarily infects sheep and goats. The condition is most commonly seen in animal handlers, butchers and farm workers. Anyone can become infected by touching the affected animals or by contact with infected pastures. Orf occurs worldwide.
MoreScabies
Scabies is a condition that occurs as a result of infestation with a tiny mite (parasite) called Sarcoptes scabei var hominis.
MoreSchool sores
School sores also known as impetigo, is an infection of the skin that can be passed from person to person. It can affect skin that is intact (known as primary impetigo) or skin that is already compromised with cuts, abrasions, insect bites or other skin conditions such as eczema (known as secondary impetigo or impetiginisation)
MoreSebaceous cyst
A sebaceous cyst also known as an epidermoid cyst, is a benign walled-off cavity filled with keratin which originates from the hair follicle unit.
MoreSebaceous hyperplasia
Sebaceous hyperplasia is a benign growth of the sebaceous (oil) glands. It most commonly occurs in middle-aged or older people. It presents as single or multiple yellowish white bumps on the forehead, cheeks and nose. These bumps can occasionally occur on other areas such as the areola (near the nipples), chest, scrotum and penis.
MoreSeborrhoeic Dermatitis and Cradle Cap
Seborrhoeic Dermatitis is inflammation of the skin that usually occurs on areas of the body such as the head and trunk where there are a greater number of oil glands. The condition can occur in the first year of life when it is called “cradle cap” or develops from puberty onwards. Mild cases occurring on the scalp can affect many individuals and this is usually known as “dandruff”.
MoreSeborrhoeic Keratoses
Also known as ... Age Warts, Senile Warts, Brown Warts Seborrhoeic Keratoses are benign “wart-like” growths on the skin. Seborrhoeic Keratoses affect all racial groups and most commonly appear after the age of 40 years although some people may develop them earlier.
MoreSenile warts
Senile warts also known Seborrhoeic keratoses are benign “wart-like” growths on the skin. Seborrhoeic keratoses affect all racial groups and most commonly appear after the age of 40 years although some people may develop them earlier.
MoreShave bumps
Shave bumps 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.
MoreSheep pox
Sheep pox also known as Orf is an infection caused by the parapox virus which primarily infects sheep and goats. The condition is most commonly seen in animal handlers, butchers and farm workers. Anyone can become infected by touching the affected animals or by contact with infected pastures. Orf occurs worldwide.
MoreShingles
Shingles is a localised, blistering, red and painful rash. It can involve the chest, neck, abdomen, face or ear canal and central nervous system.
MoreSixth Disease
MoreSkin Cancer – An Overview
Australia reports the highest rates of skin cancer in the world. Melanoma and non-melanoma skin cancer are the most commonly diagnosed cancers in Australia each year.
MoreSkin irritation
Dermatitis is a very common, itchy red skin rash with a variety of types and causes (some types are also called eczema).
MoreSkin structure and function
The skin is an organ that provides the outer protective wrapping for all the body parts. It is the largest organ in the body. It is a waterproof, airtight and flexible barrier between the environment and internal organs. It keeps the internal environment of our body stable. The skin is divided into 3 layers, the epidermis, the dermis and the subcutaneous layer.
MoreSkin Tags
Skin tags are harmless growths that hang from the surface of your skin. They range in size from 1mm to 1cm and are made of collagen fibres and blood vessels surrounded by skin.
MoreSlapped cheek disease
Slapped cheek 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.
MoreSolar keratoses
Solar keratoses also known as Actinic keratoses are pre-cancerous lesions that develop on sun-exposed areas of skin. They most commonly appear as rough, dry and scaly patches on the skin.
MoreSpeckled lentiginous naevus
Speckled lentiginous naevus also known as naevus spilus, is a type of birthmark that consists of a flat brown background patch containing darker brown spots or tiny bumps.
MoreSpider angioma
Spider angioma also known as spider naevi are prominent blood vessels affecting up to 10% of the population. They usually occur as single or multiple blood vessels on the face, chest and neck areas.
MoreSpider Naevi
Spider naevi are prominent blood vessels affecting up to 10% of the population. They usually occur as single or multiple blood vessels on the face, chest and neck areas.
MoreSpider Naevus
Spider Naevus also known as spider naevi are prominent blood vessels affecting up to 10% of the population. They usually occur as single or multiple blood vessels on the face, chest and neck areas.
MoreSpider veins
Spider veins also known as telangiectases, are superficial blood vessels, which are visible with the naked eye. The majority can be improved with laser treatment or sclerotherapy.
MoreSpots
Spots also known as acne is a very common skin condition that usually begins in adolescence. The hair follicle and its associated oil (sebaceous) gland become blocked and inflamed
MoreSquamous Cell Carcinoma
Squamous cell carcinoma (SCC) is one of the most common forms of skin cancer, with only basal cell carcinoma (BCC) occurring more frequently. SCC occurs mainly in Caucasians. It starts from cells in the outermost layer of the skin which start to overgrow and potentially spread. SCC can also start from cells on the lips, tongue, lining of the mouth and genitals.
MoreSquamous Cell Carcinoma In Situ
Squamous cell carcinoma in situ also known as Bowen’s disease is a common superficial cancer of the skin. It appears most commonly as a slow-growing, persistent red scaly patch on areas of skin exposed to the sun.
MoreSteatocystoma Multiplex
Steatocystoma multiplex is a genetic condition. It leads to the development of multiple lumps within the skin called sebaceous cysts. Within the skin, the role of the sebaceous glands is to produce sebum which acts as a lubricant. Sebaceous cysts are small sacs with sebaceous gland lobules in their walls.
MoreSteroid induced rosacea
Steroid induced rosacea also known as perioral dermatitis is a common inflammatory rash that occurs around the mouth area. Other affected areas include around the nose, chin and eyes.
MoreStevens-Johnson syndrome (SJS)
Stevens-Johnson syndrome (SJS) and Toxic epidermal necrolysis (TEN) are extremely rare, sudden onset, often life-threatening reactions to medications occurring in the skin and the linings of the mouth, the gastrointestinal tract, genitalia and eyes. The affected person has a fever and there may be enlargement of the lymph nodes and inflammation in the liver and other organ systems.
MoreStrawberry birthmarks
Strawberry birthmarks also known as Infantile haemangiomas are the most common benign growths of infancy and childhood, affecting 2.6 to 4% of babies by 6 weeks of age.
MoreStretch Marks
Stretch marks are extremely common, affecting over 70% of the population. There are two types of stretch marks – striae rubra (red or new stretch marks) and striae alba (white or old stretch marks). New stretch marks are more responsive to treatment than old stretch marks.
MoreStriae
Stretch marks are extremely common, affecting over 70% of the population. There are two types of stretch marks - striae rubra (red or new stretch marks) and striae alba (white or old stretch marks).
MoreSubcutaneous fat necrosis of the newborn
Subcutaneous fat necrosis of the newborn is a type of fat inflammation (panniculitis). It is a rare and transient condition that results in the development of red, firm and deep lumps in the fatty layer of the skin.
MoreSun Protection & Sunscreens
Sun protection is aimed at reducing excessive exposure to sunlight. Effective sun protection allows for healthy growth and development as well as enjoyment of outdoor activities but, at the same time, aims to reduce risk of skin diseases which are related to overexposure to sunlight.
MoreSun spots
Sun spots also known as Actinic keratoses are pre-cancerous lesions that develop on sun-exposed areas of skin. They most commonly appear as rough, dry and scaly patches on the skin.
MoreSuperficial gyrate erythema
Superficial gyrate erythema also known as erythema annulare centrifugum (EAC), refers to an annular (ring-shaped) erythematous (red) skin eruption that tends to spread outwards whilst clearing centrally.
MoreSutton’s ulcer
Sutton’s ulcer also known as Aphthous ulcers, are a common problem with a higher prevalence in high socio-economic areas.
MoreSweat rash
Sweat rash also known as miliaria, is a group of skin conditions that arise from blockage of sweat ducts.
MoreSweaty feet
Sweaty feet also known as plantar hyperhidrosis, is a common condition affecting 1-3% of the population. The condition usually starts in childhood or adolescence. It can cause significant physical limitations and predispose to bacterial and fungal infections and friction blisters.
MoreSweaty hands
Sweaty hands also known as palmar hyperhidrosis, or excessive hand sweating, is a common condition affecting 1-3% of the population. It usually starts in childhood or adolescence. Sweaty hands can significantly affect a person socially and emotionally.
MoreSweaty sock dermatitis
Sweaty sock 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.
MoreSweaty underarms
Sweaty underarms also known as axillary hyperhidrosis, or excessive underarm sweating, is a common condition affecting up to 3% of the population. Axillary hyperhidrosis usually starts in childhood or adolescence but some people first experience it as adults.
MoreSweet’s Syndrome
Also known as .. Acute Febrile Neutrophilic Dermatosis, Gomm-Button Disease Sweet’s syndrome is an uncommon condition named after the English dermatologist, Dr Robert Sweet, who first described it in 1964. Sweet’s syndrome usually presents with fever, a rise in white blood cells, raised red skin rashes and neutrophils (pus cells) infiltrating the upper layer of the skin. Fever and a rise in white blood cells are not always present. Sweet’s syndrome is sometimes initially mistaken for an infection or medication allergy.
MoreSyringoma
Syringomas are benign skin tumours most commonly seen around the eyelid area. Uncommonly they can occur around the genital area. Eruptive forms of syringomas may occur on the chest, neck and abdominal areas. Syringomas are relatively easy to treat but they often recur after treatment.
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