Acne vulgaris is a disorder of sebaceous follicles, sebaceous units that are clean (with respect to the hair follicles and sebaceous glands) located on the face, chest and back. This is a very common skin disease that affects almost all adolescents and adults at least once in life. According to Brown et al (1998), the highest incidence of acne at age 18, however, a significant number of men and women aged 20-40 were also affected by this disorder.
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Types of acne vulgaris
There are two types of acne vulgaris, inflammatory and other infections that can occur in many different ways:
1. Acne comedones, which is non-inflammatory acne
2. Papules and pustules of inflammatory acne
3. Acne nodular acne (inflammatory acne)
4. Inflammatory acne with hyper pigmentation (it happens more frequently in patients with skin darker skin)
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