Acne

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Acne

Acne is a group of skin rashes that have different causes.

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Acne is a group of skin rashes that have different causes.

Acne vulgaris
Acne vulgaris

Acne vulgaris is a skin condition caused by changes in the pilosebaceous units . Severe acne is inflammation, but acne can also manifest in noninflammatory forms....
- most commonly experienced around puberty, typically of the face and shoulders/chest
Cystic acne
Cystic acne

Cystic acne, also known as nodulocystic acne, is a severe form of acne wherein acne develops into small cysts. Acne cysts are not true cysts in the sense that they are not abnormal dilations of skin structure, but rather nodules of inflammation....
, a severe form of acne wherein small cyst
Cyst

A cyst is a closed sac having a distinct biological membrane and cell division on the nearby Biological tissue. It may contain air, fluids, or semi-solid material....
s form.
Acne rosacea - a red rash predominantly on the face
Acne keloidalis nuchae
Pseudofolliculitis barbae

Pseudofolliculitis barbae is a medical term for persistent inflammation caused by shaving. The etymology comes from "pseudo" "follicle" "itis" "barbae" ....
(Pseudofolliculitis nuchae) - a rash caused by shaving
Acne conglobata
Hidradenitis suppurativa

Hidradenitis suppurativa or HS is a skin disease that affects areas bearing apocrine sweat glands and hair follicles; such as the underarms, groin and buttocks....
(Hidradenitis suppurativa) - chronic abscess
Abscess

An abscess is a collection of pus that has accumulated in a cavity formed by the tissue on the basis of an infection process or other foreign materials ....
es or boil
Boil

Boil is a skin disease caused by the infection of hair follicles, resulting in the localized accumulation of pus and dead tissue. Individual boils can cluster together and form an interconnected network of boils called carbuncles....
s of sweat glands and hair follicles; in the underarms, groin and buttocks, and under the breasts in women
Acne cosmetica
Acne cosmetica

Acne cosmetica is a term referring to acne caused by or made worse by cosmetics. The mechanism was presumably a chemically induced plugging of the pilosebaceous orifice....
- acne caused by cosmetics
Acne fulminans
Acne fulminans

Acne fulminans, also known as Acne Maligna, is a severe form of the skin disease, acne, which can occur after unsuccessful treatment for another form of acne, acne conglobata....
- an extreme form of acne conglobata
Acne medicamentosa
Acne medicamentosa

Acne medicamentosa is acne that is caused or aggravated by medication. Because acne is generally a disorder of the pilosebaceous units caused by hormones, the medications that trigger acne medicamentosa most frequently are hormones....
- acne caused by starting or stopping a medicine
Baby acne
Baby acne

Baby acne, also known as acne neonatorum, is a condition that affects roughly 20% of newborn babies. Lesions appear at around 2 weeks postpartum and commonly disappear after 3 months....
- a rash seen on the cheeks, chin, and forehead of infants
Infant

An infant or baby is the term used to refer to the young offspring of humans....
Chloracne
Chloracne

Chloracne is an Acne vulgaris-like eruption of blackheads, cysts, and pustules associated with over-exposure to certain halogenated aromatic compounds, such as Polychlorinated dibenzodioxins and dibenzofurans....
- an acne rash caused by exposure to chlorinated hydrocarbons such as dioxins or PCB
Polychlorinated biphenyl

Polychlorinated biphenyls are a class of organic compounds with 1 to 10 chlorine atoms attached to biphenyl which is a molecule composed of two benzene rings each containing six carbon atoms....
s