Acne (Acne vulgaris) Acne, the most common skin disorder in the U.S., can be a source of anxiety for every teen. Plus, the incidence of acne is growing in adults, too. Acne is caused by blocked hair follicles and oil (sebaceous) glands of the skin, often triggered by hormonal changes.Click to see full answer. In this manner, what is the most common skin disease?Acne, eczema, seborrheic dermatitis, skin cancer and psoriasis are the five most common skin disorders, says Dr. Macrene Alexiades-Armenakas, assistant clinical professor at Yale University School of Medicine.Furthermore, what causes skin disease known as acne? Acne is a common skin condition causing pimples and other abnormalities on the face and upper torso. Acne is caused by a buildup of dead skin cells, bacteria, and dried sebum that blocks the hair follicles in the skin. One may also ask, what are the common causes of skin problems and diseases? Common known causes of skin disorders include: bacteria trapped in skin pores and hair follicles. fungus, parasites, or microorganisms living on the skin. viruses. a weakened immune system. contact with allergens, irritants, or another person’s infected skin. genetic factors. Is Acne a skin disease?Acne, also known as acne vulgaris, is a long-term skin disease that occurs when hair follicles are clogged with dead skin cells and oil from the skin. It is characterized by blackheads or whiteheads, pimples, oily skin, and possible scarring.