Different types of acne

There are many types of acne. Identifying which type of acne is important because there are different cause and different treatments.

Acne vulgaris or commom acne the most common type of acne consisting of papules, pustules, and comedones in various combinations.
Comedonal acne mostly blackheads and whiteheads
Inflammatory acne mostly papules, pustules, cysts
Nodular acne scattered nodules mostly concentrated on the face, chest, and/or back
Cystic acne scattered cystic lesions in common acne areas
Neonatal acne an acne-like eruption that can occur in newborns or infants
Acne excoriee even mild acne may be severely disfiguring when accompanied by extensive excoriations (picking) at lesions.
Pomade acne caused by occlusive hair products
Acne cosmetica caused by occlusive makeup and skin-care products
Steriod acne results from long-term use of oral or topical steroids
Acne conglobata an unusually severe form of cystic acne that consists of large abscesses with interconnecting sinuses, cysts, and grouped inflammatory nodules.
Acne keloidalis a type of acne in which healing results in keloidal scarring.