Acne articles
Acne lesions
What causes acne
Forms of acne
Particular forms of acne
Other forms of acne
Acne prognosis
Acne treatment
Diet and acne
Adult acne
Acne during pregnancy
Acne related articles
Myths about acne
Acne treatments
What is acne?
Acne – follicular lesions that develop in young people and that are related to seborrhea (excess secretion of sebaceous glands) and comedo formation. Acne develops when the hair follicle is clogged by excessive sebum secretion. At the base of each hair there is a gland called sebaceous gland that secrets an oil called sebum which keeps the skin and hair lubricated. Follicular lesions are found on the areas rich in sebaceous glands (face, shoulders, upper chest and back).
Because of the hormonal changes occurring during teenage these glands start to produce excessive sebum which builds-up into the follicle and leads to its occlusion; sebum continues to build up within the pilo-sebaceous duct resulting in inflammation or infection. The infection mainly occurs by popping/picking/touching the comedones or pimples.
Acne is defined as a premature manifestation of puberty and in girls it may precede menarche by more than one year. The incidence of acne is currently considered 80% of teenagers and young adults aged 11-30 years. Lately, an increased incidence of acne was noticed among young adults(see adult acne) and even up to 40-50 years. This condition is more prevalent in women but more severe when found in men, forming more frequently scars, if the early acne treatment is not started.
Acne evolution mainly results in spontaneous healing, in men around the age of 20 and in women between 22 and 25 years. In women acne disappears later because of contraceptive treatment, use of cosmetic products inadequate for the type of skin (generally more oily) or because of tabagism (a linear relationship was established between the acne prevalence and severity and the number of cigarettes smoked daily).
Seborrheic syndrome includes:
1) Acne Vulgaris
2) Acne Rosacea
3) Male Pattern Alopecia
4) Seborrheic Dermatitis
and occurs as a result of pilosebaceous unit disorder, consisting of excessive sebum secretion because of an increased production of dihydrotestosterone.
