System
Acne-Acne is a skin disease marked by pimples on the face, chest, and back. The most common skin disease. Increased levels of androgens cause the sebaceous glands to secrete an excessive amount of sebum into hair follicles. The excess sebum combines with dead, sticky skin cells to form a hard plug that blocks the follicle. Bacteria that normally lives on the skin then invades the blocked follicle. Weakened, the follicle bursts open, releasing the sebum, bacteria, skin cells, and white blood…
Words 1558 - Pages 7