Digital World

What Causes For Acne

All acne is a trouble of the pilosebaceous unit, which is assembled of a hair follicle, sebaceous gland (The sebaceous glands are microscopic glands in the skin that secrete an oily/waxy matter, called sebum, to lubricate and waterproof the skin and hair of mammals. In humans, they're found in greatest abundance on the face and scalp, though they're distributed throughout all skin sites except the palms and soles), and a hair. These units are found everywhere on the body except on the palms, soles, top of the feet, and the lower lip. The number of pilosebaceous units is greatest on the face, upper neck, and chest. Sebaceous glands create a substance called sebum, which is responsible as keeping the skin and hair moisturized. During adolescence sebaceous glands enlarge and produce more sebum under the influence of hormones, also called androgens. After about age 20, sebum production commences to decrease.

Acne & Bacteria

A bacterium, called Propionibacterium acnes, is a convention denizen of the skin. It applies sebum as a nourishing for growth, therefore increases in follicles during puberty. People with acne have more Propionibacterium acnes in their follicles than people without acne. The presence of bacteria pulls in white blood cells to the follicle. These white cell bring forth an enzyme that harms the wall of the follicle, giving up the contents of the follicle to enter the dermis. This action drives an inflammatory reply seen as papules (red bumps), pustules, and nodules. The bacteria as well cause the establishment of free fatty acids, which are thorns, increasing the inflammatory process in the follicle.

Normal Follicles

Sebum acquired by the sebaceous gland aggregates with cells being exuviated away within the hair follicle and "fills up" the hair follicle. When the follicle is "full", the sebum covers the skin surface giving the skin an oily appearance. Once this action works right, the skin is moisturized and stays healthy.

Obstructed Follicles

Troubles come up when the sebum is trapped in the hair follicle. For causes that are still unclear, some hair follicles turn blocked. The sebum is acquired but gets unfree on the way out, and the cells that are ordinarily sloughed off become "sticky", plugging up the follicle. The action of obstructing follicles is called comedogenesis. It causes some follicles to form a type of acne called comedones, a.k.a. blackheads and whiteheads.